Canon law touched nearly every aspect of medieval society, including many issues we now think of as purely secular. It regulated marriages, oaths, usury, sorcery, heresy, university life, penance, ...

Alexandrowicz, Piotr 2023. Nowe szaty króla – uwagi nad książką Krzysztofa Burczaka. Krakowskie Studia z Historii Państwa i Prawa, Vol. 16, Issue. 4, p. 533.