2 Samuel 21:8

And the king took the two sons of Rizpah the daughter of Aiah, whom she had borne to Saul, Armoni and Mephibosheth; and the five sons of the sister of Michal the daughter of Saul, whom she had borne to Adriel the son of Barzillai the Meholathite;

1 Samuel 18:19

And it came to pass at the time when Merab Saul's daughter should have been given to David, that she was given to Adriel the Meholathite as wife.

2 Samuel 3:7

And Saul had a concubine whose name was Rizpah, the daughter of Aiah. And Ishbosheth said to Abner, Why hast thou gone in to my father's concubine?

Treasury of Scripture Knowledge

Summary

But 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, whom she brought up for Adriel the son of Barzillai the Meholathite:

Bible References

Michal

1 Samuel 18:19
And it came to pass at the time when Merab Saul's daughter should have been given to David, that she was given to Adriel the Meholathite as wife.