From A Wiki of Ice and Fire
|Alias||Long Tom Costayne|
|Book||A Feast for Crows (mentioned)|
Ser Tom Costayne, better known as Long Tom Costayne, was a knight from House Costayne who became a member of the Kingsguard at an unknown time.
Ser Tom became known as 'Long Tom' while serving in the Kingsguard for sixty years.
He may have been Tommen Costayne, a knight who participated in the Tourney at Ashford Meadow. In this case, he would have been appointed to the Kingsguard after 209 AC and died before Ser Harlan Grandison in 281 AC.
- ↑ 1.0 1.1 1.2 1.3 A Feast for Crows, Chapter 16, Jaime II.