Tommen Costayne (knight)
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|Book||The Hedge Knight (mentioned)|
Ser Tommen Costayne was a knight of House Costayne during the reign of King Daeron II Targaryen.
Tommen participated in the tourney at Ashford Meadow in 209 AC.
He may have been Tom Costayne, a knight of the Kingsguard in an unknown period. In this case, he would have been appointed to the Kingsguard after 209 AC and died before Harlan Grandison in 281 AC.