Vladimir II Monomakh
Coloman married his second wife Eufemia in the summer of 1112. Born in 1096 or 1097, she was at least 25 years younger than Coloman. She was the daughter of Vladimir II Monomakh, who was Prince of Pereyaslavl at the time of her marriage. After Coloman repudiated her on a charge of adultery, Eufemia fled to Kiev, where she gave birth to a son, Boris, who was never regarded as Coloman's son by his Hungarian relatives.