For everyone who has an understanding of the history of the Han dynasty and the princes with different surnames in the early Han Dynasty, Lu Xuan, the king of Yan, is a name that cannot be bypassed.

In the fifth year of Emperor Gao, Xiang Yu, the king of Chu, killed himself in Wujiang, and the Han dynasty was established.

Immediately afterwards, Liu Bang held an enthronement ceremony in the Yang of Bishui, and then he was crowned with princes with different surnames.

At that time, the Han family had the first seven princes with different surnames;

- King of Chu, Han Xin;

- Yan Wang, Zang Di;

- Han Wang, Han Xin;

- Liang Wang, Peng Yue;

- Zhao Wang, Zhang Er;

- King Huainan, Yingbu;

and, Wu Rui, King of Changsha.

It is not difficult to find from this list: among the first princes with different surnames, Lu Juan's name was not seen.

And Lu Juan's position as the 'King of Yan' is also occupied by Zang Di.

This is indeed the case - after the establishment of the Han family, Lu Juan's title was not 'King Yan'.

It's 'Chang'an Hou'!

Not to mention the above history, the record of Lu Juan's 'less classmates with Gaozu, living in the same place, and born on the same day', it is not difficult to see Liu Bang's favor to Lu Juan from Lu Juan's title of 'Marquis of Chang'an'.

——Chang'an, the capital of the country, is the food of Lu Juan!

It is not an exaggeration to say that it is rare in history!

Lu Juan and Emperor Gao Liu Bang, born on the same day and month of the same year, are neighbors in the same township, and they have been friends since they wore open crotch pants.

After Liu Bang rebelled against Qin, Lu Juan naturally supported his good friends and participated in Liu Bang's camp.

In the subsequent War of Resistance against Qin and the period of the Chu and Han Dynasty for hegemony, Lu Juan made many meritorious contributions and was appointed as a lieutenant; After the establishment of the Han Dynasty, he was named the Marquis of Chang'an by Liu Bang.

In the second year of the establishment of the Han Dynasty, Zang Tu, the king of Yan, rebelled and was pacified by Liu Bang's personal expedition, and then, Lu Juan replaced Zang Tu, who was defeated and died, and became the eighth and last prince with a different surname in the Han family.

For Lu Xuan, a good friend from childhood to adulthood, Emperor Gao Liu Bang can be said to have infinite trust and great favor.

Whether it is to first take Chang'an, the capital of the country, as the place where Lu Juan eats, or to hand over the most critical Yan State in the north to Lu Juan, it is enough for Liu Bang to pat his chest and say: I am rich and noble, and I have not forgotten the old man!

But it's a pity that Lu Juan is so favored by Liu Bang, but he is not worthy of this trust......

At the end of last year, that is, in the autumn of the eleventh year of Emperor Gao, the acting minister Chen Feng rebelled, and Liu Bang personally drove to Handan, the capital of Zhao, to attack the country from the south.

At the same time, Liu Bang ordered Lu Xuan, the king of Yan, to attack the eastern part of Daiguo from the east to form a two-sided attack on Chen Xuan.

Faced with the east and south attacks of Lu Juan and Liu Bang, the brothers, Chen Xuan suddenly became confused, and hurriedly sent an envoy north out of the grassland to ask the Xiongnu for help.

After learning of this, Lu Juan also sent an envoy to lie to the Huns: Chen Xuan has been defeated, Daiguo has been pacified, and His Majesty's army has set up an ambush in Daibei.

Obviously, Lu Juan at that time was not only Liu Bang's qualified and good friend, but also a very potential member of the 'War Situation'.

But the turning point of the matter also happened at this time.

The envoy sent by Lu Juan to the Xiongnu for the 'war' was named Zhang Sheng.

After arriving at the grassland, Zhang Sheng did complete his strategic flickering task as Lu Xuan explained.

But at this moment, a figure that surprised everyone appeared in the Hun Shan Yu big tent.

——The son of the late Yan King Zang Di, Zang Yan!

It turned out that after the defeat and death of Zang Tu, the king of Yan, his son Zang Yan fled to the Xiongnu, and was regarded as an 'expert on Han family issues' by the Xiongnu Shan Yu Maodun.

For Liu Bang, who destroyed his own society, and Lu Juan, who replaced his own feudal country, Zang Yan naturally hated it to the bone marrow, hated that he could not help the Xiongnu, and he was willing to completely destroy the Han family.

So, Zang Yan said to Zhang Sheng: Your Excellency is really irrational;

Zhang Sheng asked why, and Zang Yan explained: In the past, Liu Bang wanted to defeat Xiang Yu, and my father was useful to Liu Bang, so he became the king of Yan;

Later, Xiang Yu died, and my father was useless, so he was killed by Liu Bang; I can only flee to the steppe and join the barbarians;

Your Excellency was reused by Lu Juan, also because Your Excellency knows the Xiongnu language and is useful to Lu Juan; If the Xiongnu cease to exist, Your Excellency will not be reused by Lu Xuan.

In the same way, Liu Bang's reuse of Lu Juan was to stifle Chen Xuan; If Chen Xuan died, Lu Juan would also be killed by Liu Bang.

In this case, why didn't Your Excellency persuade Lu Xuan not to defeat Chen Xuan too quickly?

You must know that the rabbit is dead and the dog is cooked, and the bird is hidden by the bow......

After being persuaded by Zang Yan like this, Zhang Sheng felt that it was very reasonable, so he immediately changed the wall flag and said: Since this is the case, please persuade Shan Yu to send troops to support Chen Xuan, Chen Xuan will not last long......

In this way, Zhang Sheng, the envoy sent by Lu Juan to carry out strategic fooling, threw himself into the Xiongnu camp.

Lu Juan hadn't reacted at this time, and when he heard the news of Zhang Sheng's 'job hopping', he hurriedly asked Liu Bang for instructions: Big brother, Zhang Sheng is a traitor, I want to kill him from the nine clans!!

Without waiting for Liu Bang to figure out what was going on, Zhang Sheng secretly ran back to Yan Kingdom and told Lu Juan Zang Yan's words of persuasion again.

After hearing this, Yan Wang Lu Juan suddenly slapped his head: Eh, it seems to make some sense!

So, just a few days after asking Liu Bang to 'kill Zhang Sheng's whole family', Lu Juan sent another message to Liu Bang: Oh, big brother, this is all a misunderstanding, it is not Zhang Sheng who is a traitor, it is another person......

I have to say that Liu Bang also trusts Lu Juan, an old fellow, to the extreme - Lu Juan said that it was a misunderstanding, and Liu Bang really believed it!

Then, Lu Juan asked Zhang Sheng to return to the grassland and be his messenger to contact the Huns; At the same time, he sent people to persuade Chen Xuan to flee to the grassland and camp in the area north of Yan State.

Lu Juan and Chen Xuan agreed: The two sides are on the same surface as each other, but in fact they are 'like brothers', and they each raise their own self-respect in the Xiongnu Shan Yuting and the Han Dynasty.

It's just that paper can't contain fire after all.

In the follow-up process of quelling the rebellion of Chen Xuan, Liu Bang heard about the wishful thinking of Lu Xuan, the king of Yan, from the mouths of countless nobles who surrendered to Chen Xuan and the Xiongnu.

At this time, Liu Bang still didn't want to believe that the old buddy Lu Juan would betray him.

In order to find out the truth and return Lu Juan's innocence, Liu Bang sent someone to summon Lu Juan to see him, but Lu Juan said that he was sick and could not go;

Liu Bang sent an envoy to investigate Lu Juan's subordinates, and Lu Juan was even more frightened, and for some reason, he actually began to spread rumors in Yan Kingdom.

Lu Juan said: There were originally seven princes with different surnames in the Han family, and I added eight, but now, only me and Wu Rui, the king of Changsha, are left;

Last spring, the Chang'an clan exterminated Han Xin, the Marquis of Huaiyin, and killed Peng Yue in the summer, all of which were done by Queen Lu Pheasant;

Now that His Majesty is sick, political affairs are decided by Lu Hou, and Lu Pheasant has continuously killed princes with different surnames, I am afraid that he will cause chaos to the dynasty!

At this time, Liu Bang finally reacted, and the old man Lu Juan had a rebellion, so he appointed Wuyang Marquis Fan Hao as the commander to crusade against the rebellious Yan King Lu Juan.

But just over a month after Fan Hao led his army from Chang'an and arrived at the front line, someone told Liu Bang that Fan Hao had also reversed......