Merab

Merab (1 Samuel 14:49 - 18:19) is the older daughter of Saul, first king of Israel. Saul promises his daughter in marriage to the man who can defeat Goliath. For some reason he doesn't actually keep that promise at once, but later he does offer David Merab. David the ex-shepherd is too humble to accept, however, and she marries someone else instead.

In due course she has five sons, but when famine strikes (2 Sam 21:8), King David kills all five to appease a tribe who her father attempted to wipe out.