
Barrowton is probably located somewhere in the Barrowlands.
The current Lord Dustin is unknown, but it is known that a Lord Dustin accompanied Eddard Stark and five other men to the tower near the Dornish mountains where Lord Stark’s sister Lyanna was held under the guard of three of the Kingsguard, including the Lord Commander Gerold Hightower. Lord Dustin and four other men died at the hands of the three White Swords.