Adonibezek in Fausset's Bible Dictionary

("Lord of Bezek", a city of Canaan.) Leading the confederated Canaanites and Perizzites, he was conquered by Judah and Simeon, who cut off his thumbs and great toes. Conscience struck, he confessed that 70 kings (petty princes) had gleaned (margin) their meat under his table, deprived of thumbs and great toes: "As I have done, so God hath requited me" (Judges 1:4-7). Brought a prisoner to Jerusalem, he died there. God pays sinners in their own coin (1 Samuel 15:33). Judah was not giving vent to his own cruelty, but executing God's lex talionis (Leviticus 24:19; Revelation 16:6; Proverbs 1:31). The barbarity of Canaanite war usage's appears in his conduct. The history shows that Canaan was then parceled out among a number of petty chiefs.

Link: https://bible-history.com/faussets/A/Adoni-bezek/