From A Wiki of Ice and Fire
Mudfoot was a name given to the garrison of gold cloaks stationed at the River Gate of the city of King's Landing, also known as the "Mud Gate".
During the riots in King's Landing in the Dance of the Dragons, the Mudfoot garrison joined the hedge knight Perkin the Flea and declared their allegiance to Trystane Truefyre, Ser Perkin's squire who had been declared a bastard son of the late Viserys I Targaryen. The Mudfoot garrison flew King Trystane's banner above the River Gate.
- ↑ 1.0 1.1 Fire & Blood, The Dying of the Dragons - Rhaenyra Overthrown.