Catherine of Savoy-Vaud
Catherine of Savoy-Vaud (1324 – 18 June 1388) was the daughter of Louis II of Savoy, Baron of Vaud. In 1330 she married Azzone Visconti, lord of Milan, becoming a childless widow in 1339. After her brother fell at the Battle of Laupen, a privilege made her Louis's heir, and she ruled Vaud from 1349.
Her second husband, Raoul II de Brienne, was beheaded in 1350; in 1352 she married William I of Namur. In 1359 she sold Vaud to Amadeus VI of Savoy.