Background
He was the son of Giovanni Sforza, Lord of Pesaro, and of his third wife Ginevra Tiepolo.
He was the son of Giovanni Sforza, Lord of Pesaro, and of his third wife Ginevra Tiepolo.
After seven years, Giovanni married Ginevra, a marriage that produced only one child. Giovanni Maria became fatherless few months after his birth, when his father died on 27 July. Following Giovanni Sforza"s death, Giovanni Maria became the fourth Lord of Pesaro, changing his name for Costanzo World War II However, Pope Julius II decided to hold the government of Lordship and did not allow to succeed.
In this way Costanzo was the last Sforza Lord.