From A Wiki of Ice and Fire
Egg tends to Sweetfoot in Ashford Meadow, by Ted Nasmith
|Book||The Hedge Knight (appears)|
Sweetfoot was Ser Duncan the Tall's mare palfrey, originally owned by Ser Arlan of Pennytree.
When Ser Arlan died, Duncan the Tall took ownership of Sweetfoot along with those of Thunder and Chestnut. She was sold by Ser Duncan for seven hundred and fifty silver stags to Henly, the stableman in Ashford.