Was it an accepted custom amongst the Ancient Israelites to name their children Ishmael? (2 Kings 25:25-27 and the Book of Jeremiah )

I might be making much ado about nothing and/or being nit-picky. However, was it an accepted custom amongst the Ancient Israelites to name their children Ishmael? I'm asking because in 2 Kings 25:25-27 and the Book of Jeremiah, it mentions a person named Ishmael the son of Nethaniah, the son of Elishama, of the royal family. > 25 But it came about > in the seventh month, that Ishmael the son of Nethaniah, the son of > Elishama, of the royal [a]family, came [b]with ten men and struck > Gedaliah down so that he died along with the Jews and the Chaldeans > who were with him at Mizpah. - 2 Kings 25:25-27 (New American Standard Bible 1995) > 8 So they came to > Gedaliah at Mizpah, along with Ishmael the son of Nethaniah, and > Johanan and Jonathan the sons of Kareah, and Seraiah the son of > Tanhumeth, and the sons of Ephai the Netophathite, and Jezaniah the > son of the Maacathite, both they and their men. - Jeremiah 40:8 (New American Standard Bible 1995) However, is it strange for Ancient Israelite to name one of their children, Ishmael, which is a name usually associated with a quasi rival as Ishmael was an opponent of Isaac (one of the paternal ancestors of the Ancient Israelites)?