Her marriage to Kálmán, who was the son of King András or Andrew II of Hungary, was negotiated when she was about three.

Since her mother had ancestral connections to the lands of Galicia, and both her father and King Andrew wanted to dominate that area, this plan seemed to meet the needs of both parties.

After their release they returned to Hungary and lived in Szepes, now Spiš in the nation of Slovakia.

In 1245 she joined the Order of Poor Ladies and founded a monastery in Zawichost in which to live as nuns according to the Rule of Saint Clare.

Because of the danger of a Mongol invasion into Poland, Salomea and the other Poor Ladies moved westward from Zawichost in March 1257, and relocated to Skała, north of Kraków.