Did the Crusaders have children? The Knights Templars were chaste, I believe.
No. They were warrior monks who vows of poverty, chastity and obedience at a time when oaths were taken very seriously. (Unlike today)
Templars who violated their order’s rules could be walled up to die.
They sure were, first they were chaste out of the Middle East by the Saracens, then they were chaste right onto the stake by the Papal authorities.