Andrea Doria was among the heroes of Lepanto, as you say. The more you look into the history of that period, the more amazed you are. Christendom was engaged in civil war, of which the rise of Protestantism was only one aspect, and the Battle of Vienna and the Battle of Lepanto were won by ragtag bunches of troops from different cities and states who came together by what looks like a miracle.
The leader at Lepanto, Don John of Austria as Chesterton calls him, was an imperial bastard. His tomb is in Spain, in a room separate from the rest of his family. Charles V, the Holy Roman Emperor, was two damned busy fighting off the French to be bothered to show up at Vienna with his armies when the Turks invested the city.
The Battle of Lepanto was won by a combination of Genoese and Venetians, although those two cities spent most of their time fighting each other, in trade and war. Most of the Dorias hated Venice and supported rival candidates for the Kingdom of Naples.
Meantime, the French kings of the sixteenth and seventeenth centuries were more often allied with the Sultan than anyone else. What else but a miracle could have defeated the Turks?