Bonifazio della Gherardesca

Bonifazio della Gherardesca, known as Fazio (c. 1250–1312), was a Pisan nobleman, a son of Gherardo della Gherardesca “il Vecchio” and Teodora of Montferrat.

After Pisa overthrew the giudicato of Cagliari in 1258, his father gained Sardinian territory including the curatorie of Sulcis, Nora and Decimo, which later passed to Bonifazio and his brother Ranieri. Their cousin Guelfo seized them, but Ranieri retook the region by storming Villa di Chiesa in 1295.

Bonifazio served as a Pisan admiral and fought at the battle of Meloria in 1284. His son Gherardo was the father of Fazio Novello, later lord of Pisa.