A poroniec ([ˈpɔrɔɲɛt͡s]; plural porońce) is a hostile and malicious demon from Slavic mythology. They were believed to come into existence from stillborn fetuses, but also from improperly buried remains of children who had died during infancy.[1]
^Podgórscy, Barbara i Adam (2005). Wielka księga demonów polskich: leksykon i antologia demonologii ludowej. Katowice: Wydawn. Kos. ISBN978-83-89375-40-7.