"Man of shame or humiliation, the youngest of Saul's four sons," and the only one who survived him (2 Sam. 2-4). His name was originally Eshbaal (1 Chr. 8:33; 9:39). He was about forty years of age when his father and three brothers fell at the battle of "Gilboa. Through the influence of Abner, Saul's cousin, he was" "acknowledged as successor to the throne of Saul, and ruled over" "all Israel, except the tribe of Judah (over whom David was" "king), for two years, having Mahanaim, on the east of Jordan, as" his capital (2 Sam. 2:9). After a troubled and uncertain reign "he was murdered by his guard, who stabbed him while he was" asleep on his couch at mid-day (2 Sam. 4:5-7); and having cut "off his head, presented it to David, who sternly rebuked them" "for this cold-blooded murder, and ordered them to be immediately" executed (9-12).

See where Ishbosheth occurs in the Bible...

Definition of Ishbosheth:
"a man of shame"