when married to Milutin, and was expelled by Milutin in 1299 when she was 19 or 20 years old, it is unlikely that she had (two) children with him, especially considering the dates from Stefan Dečanski's later life. According to the Serbian redaction of the Troitsky Manuscript, Milutin, Anna and "their children" were mentioned, however, in the original writings she is mentioned as the stepmother to Milutin's children. Bulgarian historian and cleric from the 14th and 15th century, Gregory Tsamblak, was adamant that the royal couple had no children. This leaves Konstantin as the younger son of Milutin. Ćorović also claims that Konstantin was Milutin's son from his first marriage, but as one of the reason why people sided with Stefan Dečanski during the war, he cited Stefan's fully Slavic origin, referring to his Bulgarian mother. However, Milutin's first wife, Jelena, was not only of Slavic, but of Serbian origin. This leaves Milutin's two foreign wives, Greek Helena and Hungarian Elizabeth, as possible mothers of Konstantin. Sometime in 1282 Milutin expelled his first wife Jelena and married Helena. He then expelled Helena, too, at the end of 1283, and married Elizabeth, who was expelled also, before August 1284. Given these dates, Konstatin may be born in 1283 by Helena. Based on his appearance on the fresco in the Gračanica Monastery, which was built from 1315 to 1321, historian Dejan Ječmenica concluded that Konstantin may be born in the final years of the 13th century, since he appears to be "some twenty years old" on the painting. This contradicts Konstantin's 1303 appointment as the administrator of Nevesinje. However it is in line with some modern historians who partially reversed the timetable of Milutin's marriages and corresponding, assigned motherhood of his children, which makes possible for Elizabeth to be Konstantin's mother, but also moves her marriage to the 1290s and prolongs it for years. Heir As a prince, Konstantin held the župa (county) of Nevesinje from 1303 to 1306. As this area was part of Hum (or Zahumlje), he was also called the regent of Hum. As it was common in Serbia at the time for older son and presumable heir ("Young King") to be given the administration over Zeta (modern Montenegro), with the accompanying style of the King of Zeta, Milutin gave the position to Stefan Dečanski. However, Stefan was unsatisfied with his prospects of inheriting the crown since the marriage