Hedwig of Swabia
Hedwig of Swabia (died 18 August 994 in Hohentwiel) was the wife of Burchard III, Duke of Swabia. A daughter of Henry I, Duke of Bavaria and Judith, Duchess of Bavaria, she patronised the formation of the St. George's Abbey, Stein am Rhein in 970. References 

994 deaths
Duchesses in Germany
Daughters of monarchs