Name Helvig Schauenburg | Died 1436 | |
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Noble family House of Schauenburg (by birth)
House of Mecklenburg (by marriage)
House of Oldenburg (by marriage) Father Gerhard VI of Holstein-Rendsburg Mother Catherine Elisabeth of Brunswick-Luneburg Buried St. Lambert's Church in Oldenburg Spouse Dietrich, Count of Oldenburg (m. 1423) Children Christian I of Denmark, Gerhard VI, Count of Oldenburg Parents Catherine Elisabeth of Brunswick-Luneburg, Gerhard VI, Count of Holstein-Rendsburg Grandchildren John, King of Denmark, Frederick I of Denmark Similar People Christian I of Denmark, Dietrich - Count of Oldenburg, Frederick I of Denmark, Christian III of Denmark, Frederick II of Denmark |
Helvig of Schauenburg (German: Heilwig von Holstein) (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. Through their father, they were cognatic descendants of King Eric V of Denmark while through their mother, they were cognatic descendants of King Abel of Denmark.

On 18 April 1417 Helvig was married to Prince Balthasar of Mecklenburg, who died of the plague in 1421. In 1423 she was married to Dietrich, Count of Oldenburg. From her second marriage she had the following children: