In the 1400s it was commonly the case that Western European Cardinals and Bishops had wives, concubines and families. I think “teachings” have changed a bit. Now someone might dispute with me on the matter but it’s pretty easy to find many of these individuals.
Clerical celibacy is a practice, not a teaching. Bishops, in either the West or the East, have never been married. The bishops who were, at any point in history, were breaking their vow to God!