According to the Bible

Bible

The Bible refers to any one of the collections of the primary religious texts of Judaism and Christianity. There is no common version of the Bible, as the individual books , their contents and their order vary among denominations...

, Absalom or Avshalom was the third son of David, King of Israel with Maachah, daughter of Talmai

Talmai

Talmai is a name in the Bible referring to a number of minor people. Its Aramaic version was connected to the Greek Ptolemy , and, later, to the Italian Bartolomeo, English Bartholomew etc....

, King of Geshur

Geshur

Geshur was a territory in the northern part of Bashan, in ancient Levant, adjoining the province of Argob and the kingdom of Aram or Syria. It was allotted to the half-tribe of Manasseh, which settled east of the Jordan river; but its inhabitants, the Geshurites, could not be expelled...

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describes him as the most handsome man in the kingdom. Absalom eventually rebelled against his father and was killed during the Battle of Ephraim Wood.
After his full sister Tamar was raped by Amnon

Amnon

According to the Bible, Amnon was the oldest son of David, King of Israel, with his wife, Ahinoam, who is described as "the Jezreelitess". -Rape of Tamar:...

, their half-brother and David's eldest son, Absalom waited two years and avenged her by sending his servants to murder Amnon at a feast to which he had invited all the king's sons.