Marcantonio Barbaro

[4] Towards the end of Palladio's life, Marcantonio commissioned him to design a circular chapel, the Tempietto, to serve the Maser estate, and he personally supervised its construction.

[5] However, Marcantonio was not buried at Maser, but rather in the family chapel in San Francesco della Vigna in Venice.

[12][13] Barbaro negotiated a peace treaty in the aftermath of his country's loss of Cyprus in 1571 and the Battle of Lepanto later the same year.

Two years after the Christian victory in the Battle of Lepanto he described how the Ottoman state was run by Christians who had converted to Islam: "It is a matter deserving consideration that the wealth, strength and government, in short the entire state of the Ottoman Empire be based and put into the hands of all people all born in Christ's faith, who by different means have been made slaves and transferred to the Mohammedan sect.

In 1558 he and his brother Daniele supported Palladio's design for a new façade for the Cathedral of San Pietro di Castello.

He played an instrumental role in acceptance of Solomon of Udine, Turkish ambassador to Venice, at the Doge's Palace.