From A Wiki of Ice and Fire
and the location of Torrhen's Square
Torrhen's Square is a castle in the North and the seat of House Tallhart. It is located south of the wolfswood, southwest of Winterfell, and north of Barrowton, on the northern shore of a large lake. A river from the lake leads south to the Saltspear.
Torrhen's Square has stone walls thirty feet high with square towers at each corner. Its square keep is considered strong.
A Clash of Kings
Torrhen's Square comes under attack from ironborn led by Dagmer Cleftjaw. Ser Rodrik Cassel takes the better part of the Winterfell garrison to respond to the threat. Once there, he breaks Dagmer's shield wall in the Battle of Torrhen's Square and sends the ironborn retreating back to the Stony Shore.
A Storm of Swords
Maester Aemon sends a raven to Torrhen's Square in a plea for help to defend Castle Black from wildlings.
Dagmer returns to capture the castle, as the Tallhart forces were largely destroyed in the Sack of Winterfell.
A Dance with Dragons
Dagmer holds captive the surviving Tallharts at Torrhen's Square. Asha Greyjoy offers to help Stannis Baratheon recover Torrhen's Square, but he refuses and focuses on Winterfell instead.
||Torrhen's Square is not worth the mud beneath my heels. It is Winterfell that matters.
- Stannis Baratheon
to Asha Greyjoy
References and Notes