Hastings' Dictionary of the Bible (1898)
ME'RAB, the eldest daughter of Saul, who promised her to David in marriage; but she married Adriel of Meholath, by whom she had five sons, and David took her sister Miehal. 1 Sam 14:49. The five sons of Merab suffered a violent death at the hands of the Gibeonites. 2 Sam 21:8.