EASTON’S BIBLE DICTIONARY (1897 EDITION)
Adriel – flock of God, the son of Barzillai, the Meholathite, to whom Saul gave in marriage his daughter Merab (1 Sam. 18:19).
The five sons that sprang from this union were put to death by the Gibeonites (2 Sam. 21:8, 9.
Here it is said that Michal “brought up” [R.V., “bare”] these five sons, either that she treated them as if she had been their own mother, or that for “Michal” we should read “Merab,” as in 1 Sam. 18:19).