From A Wiki of Ice and Fire
Widow's Watch is the seat of House Flint of Widow's Watch in the North. It is located at the end of a peninsula between the Shivering Sea and the Bite, east of Ramsgate and the Broken Branch.
A Clash of Kings
Lady Lyessa Flint declines the invitation to the harvest feast at Winterfell because she is pregnant and there is a sickness at Widow's Watch.
A Storm of Swords'
Maester Aemon sends a raven to Widow's Watch in a plea for help to defend Castle Black from wildlings.
A Dance with Dragons
The fleet of Salladhor Saan is spotted from Widow's Watch.
The Flints of Widow's Watch take their lead from Lord Wyman Manderly of White Harbor.
References and Notes