Abel Valdemarsen was Duke of Schleswig from 1232 to 1252 and King of Denmark from 1250 until his death in 1252. He was the son of Valdemar II by his second wife, Berengaria of Portugal, and brother to kings Eric IV and Christopher I. Wikipedia
Born: 1218
Died: June 29, 1252 (age 34 years), Eiderstedt
Grandchildren: Valdemar IV, Duke of Schleswig, Eric Longlegs, Lord of Langeland, Margrete, and more
Great grandchildren: Eric II, Duke of Schleswig and Bernhard III, Prince of Anhalt-Bernburg
Parents: Valdemar II of Denmark and Berengaria of Portugal
Spouse: Matilda of Holstein (m. 1237–1252)