Regardless of the fate of the Venetians, Marin's mission was finally completed very beautifully. Of course, out of kindness, Marin reminded the Venetians that galleys were inferior to sailboats in naval battles. Because, the galleys did not have as many guns as others......

Therefore, Marin suggested that Venice, without affecting the sailing performance of the galleys, should increase the gun positions as much as possible and improve the combat effectiveness. In response, the Venetian governor Leonardo Loredon took Marin's suggestion and ordered an attempt to develop galleys capable of deploying more artillery.

In fact, the Emden shipyard in Marin had long studied the tactics of increasing artillery on galleys. Moreover, it was concluded that the best way to lay out the guns and oars was to build a double-deck galleys. The oarsmen paddled on the lower deck through open windows, while the guns, deployed on the top deck......

In this way, the oars that the oarsman rows back and forth will not affect the artillery above. In this way, the galleys could deploy twenty or thirty guns. Of course, it has to be a double-decked galleys.

Moreover, in order to reduce the recoil moment and avoid too much shaking of the hull, the guns equipped on the top floor, preferably small and medium-sized guns, should be equipped with heavy guns as much as possible.

Because, when the heavy artillery is fired, the recoil is very strong. Generally speaking, the center of gravity of the ship will be low in order to avoid sailing in order to sail steadily. And the recoil arm of the top deck guns was much longer than that of the lower deck. Then, when the guns on the top deck fire, the moment generated by the recoil is much greater than that of the guns of the same power on the lower deck.

If too many heavy guns were installed on the top deck, the recoil moment generated during a salvo would be enough to overturn the ship. So, on battleships of the 19th century, heavy artillery was arranged a lot on the lower deck. For example, when the American Matthew Perry led the fleet to deter Edo, Japan, the 68-pounder Pexan gun equipped with the ship was placed on the lower deck. Of course, there is also a reason to protect the flowering shells from being detonated by the sparks of enemy shells. After all, stacking flowering shells on the top deck can easily detonate the entire ship by enemy fire. But it is undeniable that with the heavy guns on the lower deck, the recoil moment is much smaller.

And if you only place the guns on the top deck, you can't place too many heavy guns. Otherwise, the ship will really capsize in the event of a salvo. However, in this era, the specifications of the guns used by everyone generally did not exceed 20 pounds. Therefore, this problem cannot be considered a problem yet. The Venetians placed a dozen pounds of artillery on the top deck, which was enough for a naval battle with the Spanish and Portuguese.

Marin, who was too detailed, didn't say it, because it involved some military secrets. For example, in order to be more resistant to shelling, Marin ordered the ribs of the warship to be made very dense, and the thickness of the side planks was thickened, and he intended to cover them with iron sheets.

In this way, a dozen pounds of artillery could not threaten Marin's warships at all, and even more than twenty pounds. Only larger caliber guns could threaten the ship's rib-dense, broadside planks and iron-covered ships.

Such a secret, Marin obviously would not tell the Venetians. After all, the world has not yet entered the era of naval warfare, and everyone does not pay much attention to the thickening of the side side.

Therefore, Marin did not reveal the core secrets of his battleship to Venice, but only told Venice a very simple way to increase the artillery - make the ship bigger, make two decks, open the windows on the lower deck for oarsmen to paddle, and arrange more guns on the upper deck without the interference of oars for naval warfare......

In fact, after the Venetians received this inspiration, the strength of naval warfare was greatly enhanced. At least, it is not a problem to hang Spain in the Mediterranean.

Anyway, some Spain will be unlucky in the future. If the Venetians began to threaten Spain's shipping lanes in the Mediterranean, Spain would be forced to scratch its head......

The crux of the matter was that in order for Spain to rule the Kingdom of Naples and Sicily, which was isolated in the world, it had to communicate with each other by ship. If the transportation line was cut off by the Venetians, the Spanish rule over the two places would also be in serious trouble......

Marin came up with this idea for the Venetians in order to cater to his father-in-law, Julius II, who wanted to unify Italy. At the very least, it can greatly increase the probability of the Papal States gaining the Kingdom of Naples......

Sure enough, upon his return to Rome, Julius II greatly praised Marin's merits. Of course, between Weng and his son-in-law, there is no mention of any reward. After all, Julius II did not have as much as Marinchand......

Marin secretly gave Venice the idea that they might attack Spanish hegemony in the Mediterranean, which was also highly praised by Julius II. In the opinion of Julius II, the Spanish occupation of the Kingdom of Naples was unreasonable, and it was justified to leave the Kingdom of Naples under the administration of the Holy See......

……

What Julius II and Marin's sons-in-law didn't know was that at this time in Spain, something big had happened - Isabella I died......

As for the reason, we have to ask Marin......

At the beginning, in order to sabotage the marriage alliance between Spain and England, Marin deliberately revealed the news to the French under the guidance of Julius II. As a result, the French really paid attention.

Moreover, the French regarded Marin's deliberate revelation of "Ferdinand II looking for women everywhere in Italy" as a top priority.

The French have their own power in Spain, and even, many Spanish nobles have secretly turned to France, secretly communicating with France, and quietly helping the French. Among them, the aristocracy of the border areas between northern Spain and France was the greatest. After all, they don't know if their territory will be annexed by France one day.

Louis XII actually knew that Isabella I was ill, after all, French spies in Spain were not vegetarians. After hearing about Ferdinand II's affair in Italy, the obscene Louis XII recruited a French court painter, took out the portraits of Ferdinand II drawn by the spies in his collection as a reference, and asked the court painters to draw more than a dozen portraits of Ferdinand II and several fruit girls......

Then, Louis XII sent spies to send these dozen paintings to Spain, so that the French secret in Spain could be sent to the Spanish royal palace through secret channels......

Originally, Isabella I was not in good health. But as long as the mood is soothed, when the spring flowers bloom, it can still recover. However, these dozen or so restricted-grade oil paintings of Isabella I's husband, Ferdinand II, in Italy, instantly made Isabella I's mood very bad.

At the same time, news of Ferdinand II's dating of his lover in Italy, and of Princess Catherine's captivity and torture in the Tower of London, pushed by the French, spread rapidly throughout Spain......

Originally, when she saw the dozen or so restricted-level oil paintings, Isabella I was in a bad mood. When she heard that her youngest daughter, Princess Catherine, had been imprisoned and tortured by King Henry VII, Isabella I was in a terrible mood, or rather angry......

At this time, her body was already very weak. Stimulated by this, Isabella I fell ill again......

This time, the ginger brown sugar water failed to save the queen. 53-year-old Isabella I finally failed to survive and passed away...... At the time of the queen's death, Ferdinand II was in the royal palace of Naples City and several young and beautiful Italian girls had an incomparably beautiful "uncovered assembly......