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History Guldholm was located on a peninsula of land in the Langsee lake ( ) near the Schlei ( ) owned by Valdemar ( 1158-1236 ) , an illegitimate son of King Canute V of Denmark , and Bishop of Schleswig from 1184 to 1191 .
 Valdemar, Canute V of Denmark, Schleswig
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Valdemar, Canute V of Denmark, Schleswig