Don John of Austria, b. Feb. 24, 1547, d. Oct. 1, 1578, was the illegitimate
son of Holy Roman Emperor Charles V and the half brother of King Philip II of
Spain. After fighting against the Moriscos in Granada (1569), he commanded the
naval force of Spain, Venice, and the papacy that crushed the Turkish fleet in
the Battle of Lepanto on Oct. 7, 1571. Appointed Spanish governor of the Low
Countries in 1576, Don John could not subdue the Dutch Revolt either by
concessions or by war. He was succeeded on his death by Alessandio Farnese.