From A Wiki of Ice and Fire
|Book||A Feast for Crows (mentioned)|
Ser Rolland Darklyn was a knight of House Darklyn. He was a member of the Kingsguard at an unknown time, one of seven members from House Darklyn.
Ser Rolland was given his white cloak on a battlefield. Until the naming of Ser Jaime Lannister to the Kingsguard, he had the distinction of being the youngest to ever don the white cloak. He died within an hour of receiving it.
- ↑ 1.0 1.1 A Feast for Crows, Chapter 16, Jaime II.