Tags: Noble.
Helvig of Schauenburg (1398–1436) also known as Hedwig of Schauenburg was a duchess of Schleswig and a countess of Holstein from the family of Schauenburg and ancestor of the Danish Royal houses of Oldenburg and Schleswig-Holstein-Sonderburg-Glücksburg.She was a daughter of Gerhard VI of Holstein-Rendsburg and his wife Catherine Elisabeth of Brunswick-Lüneburg. Her brother was Adolf VIII/I Count of Holstein/Duke of Schleswig.