Edward I has given and granted to Aymer de Valence and his heirs the castle of Selkirk, the manors and demesne lands of Selkirk and Traquair, the burgh and mills of Peebles, and the forest of Selkirk, with power to disforest and impark the same, or lease to tenants at his pleasure; to hold of the king and his heirs as a knight’s fee, and for payment of £130 annually at Pentecost and Martinmas, provided that Aymer and his heirs shall annually pay the following alms conferred by former kings of Scotland, that is, 113s. from Traquair, 65s. from Selkirk, 50s. from Peebles, and 19s. 4d. from the mills of Selkirk. He and his heirs to be heritable sheriffs of the counties of Peebles and Selkirk.