Avshalom reigned in Year 2921, three years before the death of his father [(Tzemach David). In the first chapter of Nedarim, Shimon HaTzaddik said: In all my days I never ate an asham [offering] except once - one from the south, and he was a Nazirite, beautiful of eyes and good of appearance. He was the rectification of Avshalom who became haughty because of his hair and was a Nazirite for Heaven. Also, it was the secret of the hair of Adam HaRishon.
Avshalom was a spark of Bat-Sheva, for she remained pregnant when David lay with her, and also his spirit. And impurity was added upon his impurity - Avshalom pursued his father. And Avshalom son of Ma'acha, a woman of beautiful form, was a reincarnation of Nachash king of Ammon, and the Rashbi connected the wayward son to the beautiful woman (Bereishit Nezer)].