From A Wiki of Ice and Fire
|Book||Fire & Blood (mentioned)|
Ser Elyas Scales was a knight from House Scales in service to House Targaryen. He was the master-at-arms at Dragonstone during the reign of King Jaehaerys I Targaryen.
An older man by 49 AC, Ser Elyas Scales was a seasoned master-at-arms.
When King Jaehaerys was on Dragonstone during his regency, he spent every morning until midday in the castle yard training with sword, shield, and any other armament. Ser Elyas along with, Ser Merrell Bullock the commander of the castle garrison, Ser Merrell's two sons, and knights of the Kingsguard would spar with the king.
Your Grace, you will never be a Kingsguard, but if by some sorcery your uncle Maegor himself were to rise from the grave, my coin would be on you.—Elyas to Jaehaerys I Targaryen after months of training
- ↑ 1.0 1.1 1.2 1.3 Fire & Blood, A Surfeit of Rulers.