Ireena

Ireena Kolyana is the adopted sister of Ismark 'The Lesser' Kolyanovich.
From Adrian's 'Persons of Interest':
Ireena was found by her adoptive father (The deceased Burgomaster of village Barovia) out in the woods as a child. She was raised in his home and taught the worship of the Morninglord. From the little I know she had a good childhood until she was hunted by Strahd. She believes he took interest in her looks but his motive for chasing her are unknown. He bit her once already and tried to break into her home.
We journeyed to Vallaki to find refuge for her there but she met Izek there.. He claimed to be her brother. Little did we know he was obsessed with her, having dolls made of her by a master doll maker similar to the Blinsky doll we have. What we saw in that room would scar her for life, but we killed Izek there. Ismark repeatedly stabbed him over and over..