2 Samuel 18:17-18

17And they took Absalom and threw him into a great pit in the forest and raised over him a very great heap of stones. And all Israel fled every one to his own home.

18Now Absalom in his lifetime had taken and set up for himself the pillar that is in the King's Valley, for he said, "I have no son to keep my name in remembrance." He called the pillar after his own name, and it is called Absalom's monument to this day.