 He held extensive lands round Valcava, in the Mugello, where the church bore the Gondi arms inside and out.Of Simon's seven children, his grandson another Simon was the first of the Gondi to hold the position of Grand Prior of the Republic, on three occasions.His daughter Maddalena, who married Giovanni Salviati, by the marriage of her daughter Maria with Giovanni dalle Bande Nere, became the grandmother of Cosimo I de' Medici; thence were descended all the Catholic crowned heads of pre-Napoleonic Europe.