Sforza comes from an Italian surname, famously associated with a ruling family in Renaissance Italy, in Milan, a powerful family from 1450 to 1535. The name comes from Italian sforzare meaning “to force; to strain”, from Vulgar Latin *exfortiare via ex- (out, away) and fortiare< fortiō< fortis (strong, powerful).
The name was occasionally used as a given name in Renaissance Italy.
Sean is the Anglicized form of Seán, the Irish form of John, the Old English and Latin form of Iohannes < Ancient Greek Ioannes, the contracted form of Hebrew Yochanan which means “Yahweh is gracious”.
Origin: Proto-Semitic, Hebrew
Meaning: “Yahweh is gracious” or “God is gracious”