She received the name Yolande from her paternal grandmother Irene of Montferrat.

Her marriage was arranged to seal the newly found peace between her family and the counts of Savoy, and on the basis that the latter would succeed to Montferrato in case of extinction in the male line of the Palaeologus-Montferrat family.

According also to this act of inheritance in Montferatto, when the male line died out of the House of Palaeologus-Montferrat with the death of Boniface IV of Montferrat two centuries later, Charles III, Duke of Savoy, laid claim to Montferrato through Yolande his great-great-great-great grandmother.

She returned to the shrine after his birth, and was pleased to then conceive a daughter.

[3] Yolande died whilst giving birth to her son Louis on 24 December 1342, and she was buried in a chapel at Hautecombe Abbey.