Renly Roxton is the son and heir of Lord Jonothor Roxton. He is known as a cheerful, if a little thick-headed, knight. He was born in 488 A.C, just under a year after his parents marriage, and is six-and-twenty in 514 A.C. Like his father, he is a Tyrell Loyalist.
As of 514AC, he is the wielder of the Roxton's Valyrian Steel Sword, Orphan-Maker
Renly travels from the Ring to Oldtown with his family to attend a Ball held by Lady Ashara Lannister. He opted to ride for most of the journey, rather than riding in a Wheelhouse with his family.
Upon returning to the Ring, he spent time in the village of Girdle to assist its citizens during the Winter.
At a meeting at Highgarden with a diplomatic party from Dorne, Renly was bestowed Orphan-Maker by his father. At the same meeting, he swore his sword to the Heiress of Highgarden, Elyana Tyrell, becoming her first sworn sword.