 This is probably an error resulting from confusing two unconnected (or only very remotely connected) Portuguese noble families which happen to have the same name - the of Atouguia and the Ataídes of Alvor (Algarve).Vasco da Gama married Catarina de Ataíde, daughter of the "alcaide-mór" of Alvor.There is no indication that she was connected to Pêro's family.