From A Wiki of Ice and Fire
|Book||Fire and Blood (mentioned)|
Casper Straw was a former knight from House Straw who served the Faith of the Seven during the reign of King Jaehaerys I Targaryen.
Casper was once a knight who served as a captain in the Warrior's Sons. After their abolition, he then served as steward to the High Septon.
In 50 AC, Ser Orryn Baratheon and his men came to the motherhouse attached to the Starry Sept in Oldtown, demanding that Princess Rhaella Targaryen, a novice of the Faith, be given into his custody. The stormlanders were opposed by the alert Casper and thirty armed septons, however, and Orryn's plot was foiled.
- ↑ 1.0 1.1 1.2 Fire & Blood, A Surfeit of Rulers.