Gábor was the son of László Bánffy de Losoncz and Anna Dobokai. The date and place of his birth have not been found.
Gábor Bánffy de Losoncz
László Bánffy de Losoncz
László Bánffy de Losoncz (-c1497)
István Bánffy de Losoncz (-1458/59)
Margit Jakcs de Kusaly
Anna Dobokai