From A Wiki of Ice and Fire
The Fossoway twins were members of House Fossoway of Cider Hall during the reign of King Jaehaerys I Targaryen. Their given names have not been revealed.
In 73 AC, the Fossoway twins entered the list in a tourney at Old Oak hosted by Lord Oakheart in honor of the birth of a son. Both of them were defeated by a mystery knight known as the "Silver Fool", which was later revealed to be Prince Baelon Targaryen.
- ↑ 1.0 1.1 Fire & Blood, The Long Reign - Jaehaerys and Alysanne: Policy, Progeny, and Pain.