Facts:   - regent: valdemar the young eric iv valdemar the young    - mother: sophia of minsk    - predecessor: canute vi christopher      - house: house of estridsen    - birth date: 9 may/28 june 1170    - issue: valdemar of brandenburg abel christopher i the young eric iv ploughpenny sophia , margravine    - caption: coin history museum minted for king valdemar ii , lund university    - succession: king of denmark duke of schleswig    - reign: 1202 -- 1241 1183 -- 1216    - spouse: dagmar of bohemia berengaria of portugal    - death date: 28 march 1241 -lrb- aged 70 -rrb-    - father: valdemar i the great    - name: valdemar ii the victorious    - death place: vordingborg    - realm: denmark    - type: monarch    - successor: eric iv ploughpenny eric valdemarsen    - image: coin valdemar ii sejr.jpg minted for king valdemar ii of denmark ,    - religion: roman catholicism   Based on these bullet points, write a short biography describing the life of valdemar ii of denmark .
valdemar ii -lrb- 9 may 1170 or 28 june 1170 -- 28 march 1241 -rrb- , called valdemar the victorious or valdemar the conqueror -lrb- `` valdemar sejr '' -rrb- , was the king of denmark from 1202 until his death in 1241 .the nickname `` sejr '' is a later invention and was not used during the king 's own lifetime .`` sejr '' means `` victory '' in danish .