Who in the Bible had the most children?
Since there were no form of birth control in the Bible days, the only way for women not to get pregnant is for the man to "pull out" (other than not having sex), but did any man fathered a child he did know about or leave behind unknowingly? Because it's so easy to get pregnant.
Gideon had seventy-one sons. "Gideon had seventy sons who were his own offspring, for he had many wives. And his concubine who was in Shechem also bore him a son, whose name he called Abimelech" (Judges 8:30-31). Ahab had seventy sons (II Kings 10:1).
Judah unknowingly fathered twins. See Genesis 38:12-26.