Bran and Rickon, the two children were kind of free-range by Eddard, so they can't be blamed for the failure.

After Robb left, although Bran was the lord of Winterfell, the loss of Winterfell had nothing to do with him.

Robb was to blame for the fall of Winterfell, he hadn't figured out what he wanted from the day he gathered his vassals.

He was right in small strategy, but completely lost in big strategic thinking.

And after Winterfell was taken over by the Iron People, Robb once again chose the right strategy:

Reclaim Winterfell and regain control of the North.

His plan to recapture Carlin Bay was as bold as the siege of Riverrun, and he planned to divide his forces into three routes, one of which would move north from Neckze with the help of the Zeddians, and then attack Carlin Bay from the rear.

Unfortunately, political ignorance led to the red wedding and put an end to the plan.

At this time, come back to Bran, his dream since childhood is to become a knight, according to Ed's ability, he could have become a good knight, and then he could charge for his brother Robb.

It can be seen here that the Stark children are completely correct in the general direction, Robb is the heir, Sansa is the princess of the marriage, and Bran is the knight (to avoid fighting Robb for power).

It's just that they don't have the right education, and when they join Game of Thrones, they're too young.

Finally, Jon Snow

Regardless of whether Jon is a Stark, a Targaryen, or Snow, Eddard should have groomed him the same way as Robb.

So in terms of military ability and combat ability, Jon can be seen as Robb who is a few months younger.

The biggest difference between Jon and Robb and Sansa is his status as an illegitimate child.

And he summed it up very well:

Bastard children must learn to read words and colors, and to perceive the joys, sorrows, and sorrows that are hidden in the eyes of people.

This is the most basic quality in political wrestling.

Another member of the Stark family who has such abilities is Arya, who is closest to Jon

Arya could see that Robb's pride had been wounded, and he was about to lose his anger. (Robb when provoked by the Hound Dogs)

Arya could tell her father was not happy about it. (During the meal, he talked about holding the Prime Minister's tournament)

His words sounded so tired, and Arya was so sad to hear. (Father tells him the story of the wolf)

That's where Jon and Robb and Arya and Sansa are the differences. It's a pity that Robb and Sansa are at the center of power, not Jon and Arya.

Although the Stark family has failed now, the arrangement given to them by Old Man Martin later is good.

Maybe it's too sad that no one teaches in the front, so the teachers of the children in the Stark family in the back are all masters in their professional fields, which is equivalent to pulling Confucius, Lao Tzu, and grandson together to teach a few children.

Sansa - Petyr Berish, if you want to say that the Seven Kingdoms play power, the only one who can fight with Littlefinger is Lord Varys.

If you want to learn this kind of thing, you have to see whether people are willing to teach it.

It just so happened that Sansa had the face that Pinky had been thinking about day and night, and Lord Baerichy was now cultivating it with all her heart and lungs.

Also, her mother, Caitlyn, is dead, and Lady Stoneheart is just Lady Stoneheart, a living dead, not Catelyn.

Arya - The House of Black and White, Arya has entered the best Assassin Academy in the world, and according to her wisdom, she will be an excellent graduate sooner or later.

Bran - The three-eyed crow, because of the eight-clawed spider, so Littlefinger can only tie for first place in the political field, then Bran's teacher is the last green prophet, and this is the only one left in this field.

What's more, this green prophet not only has the ability to magic, he has also been a warrior, commanded the royal army, served as the hand of the king, served as a prisoner, and served as the commander of the night watch.

These teachings to Bran are enough for him to rule the Seven Kingdoms, not to mention that Bran, who has become a Green Prophet, still has thousands of years of wisdom in the Heart Tree.

Finally, Riken, Riken is said to be on the island of Skagus, a place where the people are tougher than the Iron People and the Savages, and there are cannibals, and it is said that there are also unicorns.

The most important thing is that Rickon has the wolf nature that the Stark family has not shown for a long time, don't look at his ice wolf called a hairy dog, Rickon the Great is a real wolf.

Overall, the Lion Flower family's quest for the right to speak in the kingdomEd's father, Reicard Stark, is a very ambitious man, unlike his ancestors who buried themselves in the snow.

Rickard developed a keen interest in the South under the influence of Maester Veris, and worked to "go south" of Stark's power.

So Rickard approached Horst Tully and Stephen Baratheon, and finalized the marriage of the eldest son, Brandon and Horst's second daughter, Caitlin, and the only daughter, Lyanna and Stephen's eldest son, and the heir Robert.

If the marriage is complete, the North will form a quasi-alliance with the Riverlands and the Stormlands bound by blood ties.

At the same time, Rickard sent his second son, Eddard, to Jon Arryn in the Vale as an adopted son, strengthening the relationship with Vale.

The Riverlands, Vales, and Stormlands have always been the Iron Throne's most loyal allies—at least before the Usurper War—so Recard understands that strengthening ties with all three is indirectly strengthening ties with the Iron Throne.

During the Dance of the Dragons, Queen Rhaenyra had promised the North a marriage to the royal family, but for various reasons it did not materialize, and perhaps Duke Ricard hoped that he would be able to pave the way for this belated marriage in his lifetime.

However, his plans were disrupted by Rhaeggar's folly in the Riverlands.

A year after the "Wrong Spring", Lyanna Stark, who was awarded the title of "Queen of Love and Beauty" by Prince Rhaegar in Harrenhal, was abducted by the former in the Riverlands.

Duke Rickard's attitude towards this is unknown, but his eldest son, Brandon, is furious about the matter like an avalanche.

The young and vigorous Brandon did something even more reckless than Rhaegar: he left aside his upcoming wedding to his fiancée Caitlin and took his men south to King's Landing, to the Red Keep, clamoring for Rhaegar to come out and die.

Although Rhaegar was at fault in the first place, Brandon's actions were much more serious, and they could be described as a great rebellion.

Needless to say, Aerys II would not allow Brandon to challenge the dignity of the royal family, so Running Wolf and his companions were arrested, and Aerys summoned Duke Rickard and the other young fathers to come to King's Landing to explain their son's actions.

If Aerys had only summoned Rickard to come and take his son and educate him, I am afraid that the Targaryen dynasty would not have ended in his hands.

But if the mad king is not crazy, how can he be called the "mad king"?

Aerys had the nobles and their sons executed, and Duke Ricard demanded a jousting trial, but he roasted the duke, who was covered in armor, and declared that the fire was his acting knight.

Brandon is forced to watch the torture, and the Mad King puts a sword in front of him, and if he gets the sword, he can save his father.

Brandon stretched out his hand with great effort, but was strangled to death by a special torture device around his neck, and the Mad King sat on the Iron Throne laughing.

After their deaths, the Mad King sent a message to Jon Arryn, ordering him to present the heads of Ricard's second son, Eddard, and Robert Baratheon, Duke of Storm's End and Lyanna's fiancé.

Perhaps because of the family motto "High as Glory", or out of love for his two adopted sons, Jon Arryn, Duke of Eagle's Nest, decided to respond to the Mad King's orders by raising his army, and the Usurper War broke out.

After the Battle of the Bells, Eddard Stark married Catelyn Tully instead of his brother Brandon, and Jon Arryn, who had lost his heir, married Catelyn's sister Rysa.

At this point, the four families of eagles, fish, wolves and deer officially formed an alliance. With Tywin's occupation of King's Landing, Robert was proclaimed the new king, and the Targaryen dynasty, which had lasted for more than two hundred years, came to an end, and the Four Alliances became the political foundation of the new dynasty.

The four alliances seem to be strong, but in fact there are huge hidden dangers.

The Westlands and Riverlands have long been the two most powerful kingdoms of the Seven Kingdoms, and the newly established Baratheon dynasty has pushed them out of King's Landing.

Jon Arryn could not have been unaware of this problem, so he arranged for Robert to marry Cersei Lannister in order to secure the rule of the new dynasty.

The kingdom seems to be stable, but beneath the façade of stability, undercurrents are still surging:

Duke Tywin has been the Prime Minister for twenty years, and he has always been committed to putting his family at the center of power in King's Landing, a man of ambition and strength.

However, apart from the Paisir, there were few spokesmen for the Western Frontier in the Imperial Council of King's Landing, which Duke Tywin could not bear, and no one wanted to be isolated, no matter how powerful;

The Tyrells have been one of the most loyal supporters of the Iron Throne since Aegon's conquest, and have been involved in almost every war of the Targaryens, with the exception of the Dance of the Dragons, but Robert's new dynasty has left them behind the Four Alliances and the Westside in King's Landing.

Perhaps fearing the strength of the Four Alliances and King Robert's prowes, the Lionflower family did not seem keen to camp in front of the Iron Throne in the early days of the dynasty, but when Robert died, they eagerly showed their ambitions.

If you don't make a move at this time, the daylily will be cold.

Their opponents were the four alliances that fell apart after Jon and Robert's deaths.

Speaking of Stark, Eddard Stark is arguably the least Stark in the entire Stark family, just like the shit-lucky Tytos Lannister, Eddard may never have imagined that he would inherit Winterfell as the second son until he died.

Unlike his eldest brother Brandon, who has the blood of a wolf in his veins, Ed is reticent and has been raised under the family motto of the Arryn family to be "as high as glory", and he has made honor a priority.

And this ruined him and his family in the future.

In the year 298 of the Conquest, Jon Arryn died of illness, and Robert, who had lost the Hand of the King, did not invite his father-in-law, Tywin, who had twenty years of experience as a prime minister, to come to King's Landing, but chose to go north to Winterfell, asking Ed to come out of the mountains to help.

Faced with the dissuasion of the people and the dissatisfaction of the forces of the West, "High as Glory" and the suspicious cause of his adoptive father's death led Ed to accept the king's invitation, and this decision eventually embroiled Ed and his family in the upcoming battle between the Lion Flower forces and the Four Alliances.

In the case of another Stark, he may quickly expel the Westlands in King's Landing after Robert's death, maintain the political foundation laid by the Four Alliances in the Usurper War, or cooperate with the Westlands to forge a new political alliance.

Yet this is Eddard, a man who enshrines "high as glory."

When he finds out what "caste toughness" really means, he doesn't choose to use it as a weapon against the West, and "High as Glory" puts him in a showdown with Cersei, who responds to his mercy by killing Robert;

When Robert was dying and the forces were fighting for the Iron Throne, he did not choose to accept Littlefinger's suggestion to let him support Joffrey to succeed to the throne and become regent himself, and "high as glory" allowed him to continue to support Robert's rightful heir, Stannis;

Lan Li later suggests that he and himself join forces to take Cersei and the three children hostage, but "High as Glory" causes him to reject Lan Li and believe Littlefinger's nonsense about the capital garrison supporting him.

Eventually, "High as Glory" kills him and turns his two daughters (from Robb's point of view) into prisoners of the Lannisters.

In a way, this is also the result of one's own death.

His death made it impossible for the Starks to put the War of the Five Kings out of the way, and to bring the "Wolf Hour" to King's Landing at the last moment, as Ancestor Craigan Stark did.

Or like another ancestor, the "Subdued King" Toruń, who preserved the strength of the North, his son Robb had to go south in an extremely passive manner to maintain the dignity of the North.

Robb's Youth, as the other respondents have said, you can't win Game of Thrones with a bunch of kids.

In the original book, Robb was only fourteen years old when he led his army south, and even in the play, he was only seventeen years old.

For most children of the aristocracy, the age of fourteen was usually spent on the school grounds and in the castle, but for Robb, his school days ended prematurely with the death of his father.

Eddard's imprisonment forced the northern army to move south to put pressure on the Iron Throne, and his death made peace no longer possible.

Young Robb was thus embroiled in a war that he should not have been involved in at his age.

For the most part, Robb showed the maturity and calmness that he should not have at his age.

However, children are children after all, and there will always be times when they are not calm enough, and the situation faced by the young wolf master is sometimes difficult for even an adult to deal with perfectly.

His youth cost him the support of Frey, one of the strongest families in the Riverlands, in exchange for only fifty soldiers and ten knights of the Westerlings;

His youth deprived him of the allegiance of his traditional ally, Karstark, whose return to the north strengthened Luce Burton's resolve to rebel.

If it was Brandon who led the troops, perhaps Jenny Westerling would have had to tearfully give birth to an illegitimate child named Hishan or Snow;

If it was Ranri Baratheon who punished Rickard Karstark, perhaps the former would have been influenced by Ranli's slick handling and would have been more determined to support the lord.

But the commander of the Northern Army was Robb Stark, a young child, a child who was deeply influenced by Eddard.