Helvig of Schauenburg
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Helvig of Schauenburg (d. 1436) was a countess of Schleswig and Holstein from the family of Schauenburg.
She was a daughter of Count Gerhard IV of Holstein and his wife Elisabeth of Braunschweig. Her brother was Count Adolf VIII of Schleswig-Holstein. 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 Count Dietrich of Oldenburg. They children from this marriage inherited the counties of Schleswig and Holstein.
