[1] Sibila belonged to the family of Fortià, of the lower nobility, with possessions in rural Empordà, in the County of Empúries.

When the king's sons, Martin and John, found out what was happening, they opposed their father's remarriage, as it could cause dynastic problems.

After Peter died in 1387, John and Violant became King and Queen of Aragon, and they wanted to be rid of Sibila.

For her own safety, Sibila fled to Sant Martí Sarroca; where her stepdaughter Eleanor of Aragon had lived before her death.

She was buried in the convent of Sant Francesc (Framenors) in Barcelona, traditional burial place of kings and queens of Aragon.