Doge Pietro Gradenigo of Venice

Pietro was born in Venice, Italy.  Pietro's father was Podesta  Marco Gradenigo of Constantinople and his mother is Anna Giustinian.  His paternal grandfather was Duke Bartolomeo Gradenigo of Candia and his paternal grandmother is Maria Tiepolo; his maternal grandfather is Marino Giustinian.  He was an only child.  He died in 1311.

‌Pietro and Tomassina were married in a religious ceremony in 1265.  They had a daughter named Elisabeth.