Margaret I of Denmark
In 1355 the Queen, Helvig of Schleswig, consort of King Valdemar IV of Denmark ("Valdemar Atterdag"), became a lay sister at Esrum after being supplanted by King Valdemar's mistress, Tove. The queen was buried in the abbey church, which brought royal gifts of property for the abbey. Her daughter, Margaret I of Denmark, continued Esrum's royal patronage, which attracted increased benefactions from other noble families on Zealand.