A moratorium is in effect on adding information from Fire and Blood until December 20th.
Sweetport Sound is the seat of House Sunglass in the crownlands. Sweetport Sound is sworn to Dragonstone, although its location along Blackwater Bay or the narrow sea has not been revealed. Ser Triston of Tally Hill is sworn to Lord Guncer Sunglass, so Tally Hill may be located near Sweetport Sound.
A Storm of Swords