Giovanni di Zani:         Born about 1414

Ioannes de Zannis

Born about 1422 in Bologna
His parents were
Zano di Zani  - who was the first to be born in Bologna
and 
Bartolomea Rociti

He was created a notary of Bologna in 1444    - Ridolfi card 217

He married Tadea Fantini
and they had 7 children including; -
Ercole senior  about  1466
Girolamo
Ulpiano