Karl O'Donnell

General Karl O'Donnell, Count of Tyronnel (1715–1771) held important commands in the Austrian army during the Seven Years' War. Betwwen 1768 and 1770, he was governor of Transylvania.

O'Donnell, held important commands during the Third Silesian War (a theatre in the Seven Years' War).

O'Donnell was a descendant of the Irish noble dynasty of O'Donnell of Tyrconnell who left Ireland after the Battle of the Boyne and settled in Austria.

A descendant, Maximilian Karl Lamoral O'Donnell was a notable figure in the history of the Italian and Hungarian campaigns of 1848 and 1849.

Henry Joseph O'Donnell (1769–1834)— from another descendant of the Irish noble dynasty of O'Donnell of Tyrconnell who left Ireland after the Battle of the Boyne; was a general officer in the Spanish Army during the Napoleonic Wars.

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