Back in the first century, Popes, such as Peter and the other apostles, were all, for the most part, married men. However, Jesus Christ was unmarried and exercised a single-minded devotion to his beliefs and mission. In the New Testament, virginity, as well as celibacy, were seen as a gift from God to be embraced.
Those who forego worldly possession and underwent poverty, chastity, and obedience, including sexual restraint was seen as the pursuit of holiness. Therefore, the Catholic Church’s pope, the purest and most moral member of the religion, was to remain celibate to focus entirely on their beliefs and the task at hand. Priests as well were asked to be celibates back in ancient times although this rule was broken many times throughout history.
Has a pope ever had a son?
There are plenty of Popes in history who, despite their vow of celibacy, have broken this rule. These include popes who were married, had long-term partners, lovers, and even a few that had children. Some Popes in history have even been known to be the son of previous Popes, who had been molded into taking over.
Hetero and Homosexuality have both been documented, with even abuse from offending Popes. For example, Pope Julius II who took the sacred oath of celibacy soon broke it when he took to having several mistresses and at least one illegitimate daughter.