King of Sweden Erik X Knutsson & Princess of Denmark Richiza Valdemarsdatter 
They had two sons and five daughters, named King of Sweden Eric XI, Valemar, Helene, Marianna, Princess of Sweden Märta, Ingeborg and Sophia.
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Personal Details
King of Sweden Erik X Knutsson
King of Sweden Erik X was born in 1180 in Stockholm, Sweden. He died at the age of 36 on April 10th, 1216 in Visingsho, Jhonkhoping, Sweden.
Princess of Denmark Richiza Valdemarsdatter
Princess of Denmark Richiza was born in 1182 in Copenhagen, Denmark. She died at the age of 38 on May 8th, 1220 in Stockholm, Stockholm, Sweden.
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Children
King of Sweden Eric XI Ericsson
King of Sweden Eric XI was born about 1210 in Stockholm, Stockholm, Sweden. He died on February 2nd, 1250 in Stockholm, Stockholm, Sweden.
Princess of Sweden Märta Eriksdotter
Princess of Sweden Märta was born about 1212 in Stockholm, Sweden. She died on January 7th, 1246 in Szczecin, Szczecin, Poland.
Ingeborg Eriksdottir
Ingeborg was born about 1214 in Stockholm, Stockholm, Sweden. She died in 1254 in Bjälbo, Ostergotland, Sweden.