How many children did Michal (David's first wife) have?
Michal had no child.
(Because God punished her for criticizing her husband David for dancing nearly naked in front of God and everybody.)
And Michal the daughter of Saul came out to meet David, and said, How glorious was the king of Israel to day, who uncovered himself to day in the eyes of the handmaids of his servants, as one of the vain fellows shamelessly uncovereth himself! ... Therefore Michal the daughter of Saul had no child unto the day of her death. 2 Samuel 6:20-23
Michal had five children.
(Who were killed and hung up "unto the Lord" To appease God and thereby end the famine that God had inflicted on the people to punish David for something that his predecesor Saul supposedly did.)
There was a famine in the days of David three years, year after year; and David enquired of the LORD. And the LORD answered, It is for Saul, and for his bloody house, because he slew the Gibeonites. ... Let seven men of his sons be delivered unto us, and we will hang them up unto the LORD. ... And the king said, I will give them. ... The king took the two sons of Rizpah the daughter of Aiah, whom she bare unto Saul, Armoni and Mephibosheth; and the five sons of Michal the daughter of Saul. ... And he delivered them into the hands of the Gibeonites, and they hanged them in the hill before the LORD. ... And after that God was intreated for the land. 2 Samuel 21:1-14
