In the Council of Trent were the priest allowed to marry?

No, the requirement of celibacy in the Western Christian Church was required by time of the Lateran Council in 1215, though the practice was instituted in various areas beforehand.

An interesting thing about celibacy in Catholic orders is that it is considered a discipline, not a doctrine or dogma, so it is possible that there may be a time when celibacy will no longer be required. Already, there are married Catholic priests in the church's Eastern rites, as well as fomer Anglican and other Protestant ministers who have received permission to be ordained as Roman Catholic priests, though married and with families. Time will tell.