From A Wiki of Ice and Fire
The name Gareth is a common first name in Westeros. It can refer to the following characters:
- Maester Gareth, the author of Red Sands on the Conquest of Dorne.
- Ser Gareth the Grey, a supporter of Daemon I Blackfyre during the First Blackfyre Rebellion.
- Ser Gareth Clifton, the husband to Lady Jeyne Farman.
- King Gareth II Gardener, a King of the Reach.
- Gareth Tyrell, the first first High Steward of Highgarden.