Pope Martin V (r. 1417–1431) created seventeen cardinals in four consistories held throughout his pontificate.
He remade Baldassare Cossa - the reconciled former Antipope John XXIII as a cardinal.
[1] It is said that the pope was the first one to name cardinals without "publishing" them at the same time and so these creations differed than those kept in pectore.
[1] The pope was said to have decided to have - in 1424 - made the priest Stefano Mucciarelli O.S.M.
who was to have been made a cardinal on 16 March 1425 but he too died before this could take effect.