In the 17th century, Finland was a part of the Kingdom of Sweden. During that time, extreme Christian conservatism took power: the Bible was interpreted literally. For example, a teenage girl was put to death for "disobeying her parents" as it is forbidden in the ten commandments. This also resulted in the persecution of practitioners of traditional rituals among Finns and the Sámi, including executions.
This time period is quite important to note. As a result, a lot of the tradition of Ostrobothnia was hidden or lost. Victims of religious persecution (for their native faith) in North Ostrobothnia escaped in droves to the eastern side of the border to what is now the western parts of White Karelia, Russia. The Finnic population of West White Karelia originates from Ostrobothnians who later became Karelianized due to close ties with their Karelian eastern neighbours in East White Karelia.
Olli Ruikka and his wife (died 1564) 
: Decapitated for witchcraft by the order of a bitter pastor. This was the death of the shaman's profession in the parish of Ii, North Ostrobothnia.
Valpuri Kyni (accused 1635 and 1649) 
: Her ears were cut off as a punishment for "witchcraft". Tradition states she was eventually burned at the stake, just like her mother and mother's father were.
Antti Lieroinen or Liera (d. 1643) 
: Savonian man was decapitated for witchcraft in Pirkanmaa. He knew the runosongs of retrieving stolen items.
Maisa Tännu (accused 1654 and 1659) : Homeless woman who was accused of witchcraft. I don't know her ultimate fate.
Marketta Punasuomalainen (d. 1658) : A healer, executed for witchcraft.
Simo Olkkoinen (d. c. 1661) : Was given the death penalty for witchcraft, though his ultimate fate is unknown due to missing records.
Sipi Antinpoika (d. 1662) 
: Executed for witchcraft for holding a ritual for Ukko.
Rumpare-Malin (d. 1676) : Finnish woman who was burnt alive for witchcraft in Stockholm. The ones who accused her later admitted they had lied.
Lusia Rusintytär Korhonen (d. 1680) : Famously accused of witchcraft, later committed suicide by hanging. Truly a symbol of the persecution of the runosong tradition in her village Ahmas in Muhos, North Ostrobothnia, which contributed into the escape of some other practitioners.
Beata Pietarintytär (accused 1689) : Accused of witchcraft but avoided execution, was released from prison in 1701.
Because I like history and find this topic interesting.
I've had some modern Swedish leftist (as opposed to myself, modern Finnish leftist) be quite mad at me for pointing this history out because: "stop trying to invent things you'd be oppressed by!" (Only immigrants are oppressed was the implication I guess.) I do not understand how pointing out this history somehow means I'm trying to invent ways of being oppressed (I'm gay I don't have to invent, thank you very much), but then again, this Swede was also completely unaware of the effects the Swedish rule still has on the demographics and regional inequality in Finland. With love to foreign leftists please shut the fuck up about this topic if you don't know anything about it. Suddenly I'm acutely aware of why Eastern Europeans are sick and tired of Western Europeans. So what I'm trying to say is if you argue with me on Twitter I will vaguepost about you forever because I am mentally ill like that. You are never alone as long as you live rent free in my head ♡