Prince Louis Thomas of Savoy-Carignan

Prince Louis Thomas of Savoy-Carignan, also Luigi Tomasso di Savoia-Carignano, was the eldest son of Eugène-Maurice of Savoy-Carignano and Olympia Mancini. He was the oldest brother of Prince Eugene of Savoy.

He married the beautiful Urania de la Cropte, whom Saint-Simon had once described as,"radiant as the glorious morn." They had three sons and a daughter, Princess Victoria of Savoy-Carignan, who eventually inherited Eugene's estate.

After the death of his father and the flight of his mother to Spain due to her involvement in the notorious "Affaire des Poisons", Louis Thomas and Urania were charged, along with his paternal grandmother, with the rearing of his younger brothers. Eugene was never to forget the couple's loving surrogate parentage.

Louis Thomas obtained a commission as an officer in the French Army, but Louis XIV had amorous designs on his wife. Urania, however, spurned the king's romantic advances. Angered, Louis dismissed Louis Thomas from the army, and, when Louis Thomas sought a position abroad, terminated his pension and dues.

In 1699, all but bankrupt, Louis Thomas sought the aid of his younger brother, Eugene, in Vienna. With Eugene's help, he obtained a commission in the Austrian Imperial Army. He was killed in action against the French at the onset of the War of the Spanish Succession on August 24 1702.