So, since it's mother's day, here's a few headcanons for Blaise and Siobhan's mother, Ferelith.
Ferelith had strawberry blonde hair, during the summer months, her hair would change to an auburn red colour. Blaise is a spitting image of his mother.
She loved music, singing many gaelic songs while she did housework, etc.,
She was one of eight kids. When she was twelve, many of them caught smallpox, including her parents. Ferelith and two of her younger brothers survived. They were left with permanent scars from their face, arms, and legs. Ferelith was very insecure of her scars.
Ferelith and her survived brothers were raised by their neighbour, Ferelith was expected to help with housework and farming, including crops. Her brothers would join the rebellion group, later on being killed during a rebellion fight.
A few months after her brothers' passing, she would see a black rose sprouting from a small bush near her neighbour's house. She ripped the flower off its stem, and the next day - the flower reappeared in the same spot. She did this so many times, and the flower would always come back. She started to believe that she was chosen by the devil. No, she did not think that was a blessing. This belief became worst when her eldest daughter's twin was a stillborn, and Siobhan's arm was paralyzed.
Ferelith met Bloid, her true love when she was seventeen. She was a bit stubborn on allowing him to take her heart; Bloid had to prove his worth and win her over by building their home, the McDougal family home. They did have their arguments, but they loved each other very much.
Ferelith loved all of her children - secretly, Blaise and Siobhan were her favourite. Sespite the path her children all took, she still loved them. She did not care they were satanists nor witches, nothing could ruin her love for them. She died protecting Blaise and did not regret giving up her life to protect one of her children.