What are the Catholic requirements for marriage?

A valid Catholic marriage results from four elements: (1) the spouses are free to marry; (2) they freely exchange their consent; (3) in consenting to marry, they have the intention to marry for life, to be faithful to one another and be open to children; and (4) their consent is given in the canonical form, i.e., in

When did the Catholic Church forbid marriage?

1139 The Church was a thousand years old before it definitively took a stand in favor of celibacy in the twelfth century at the Second Lateran Council held in 1139, when a rule was approved forbidding priests to marry.