Oros

A Valyrian city drowned and broken in the Doom.

The fuller tale

One of the Valyrian cities drowned and broken in the Doom, Oros has been a dead city for four centuries by the time the Dance is fought ÔÇö its ruin, like all of the FreeholdÔÇÖs ruin, long predates the dragon-lineÔÇÖs Westerosi civil war and has nothing to add to it.

The fallen of this place ÔÇö if any, they are named here. Spoilers.

No death the chronicle records has come to this ground ÔÇö or none the maesters have set down.