Gertrude of Saxony (c.1030--August 4,1113), also known as Gertrude Billung, was the daughter of Bernard II, Duke of Saxony and Eilika of Schweinfurt.
Gertrude of Saxony (c.1030--August 4,1113), also known as Gertrude Billung, was a countess consort of Holland, and a countess consort of Flanders by marriage. She was the daughter of Bernard II, Duke of Saxony and Eilika of Schweinfurt.