Conversation so far:
What kind of conflicts did Charles have?
Charles fought continually with the Ottoman Empire and its sultan, Suleiman the Magnificent.
Who was the first war against for Charles V?
The defeat of Hungary at the Battle of Mohács in 1526 sent a wave of terror over Europe.“
Did Charles V have allies?
In 1520, Charles visited England, where his aunt, Catherine of Aragon, urged her husband, Henry VIII, to ally himself with the emperor.
What happened with Francis during 1524?
Yet in 1524 Francis I of France retook the initiative, crossing into Lombardy where Milan, along with a number of other cities, once again fell to his attack.
Was there a third war during Charles V's wars with France?
A third war erupted in 1536.
Did anything result from Charles V's third war with France?
Following the death of the last Sforza Duke of Milan, Charles installed his son Philip in the duchy

Question: Which ally did they conquer?
Self-contained rewrite: Which ally did Francis and Charles V conquer?