The Citadel is an archive of information for George R.R. Martin's A Song of Ice and Fire.
New to the series? Read our spoiler-free review of A Game of Thrones.
House Greyiron is the house of Urron Redhand, the older ruling dynasty of the Iron Islands, wiped out by the Andals. House Hoare is the house of Harwyn Hardhand and Harren the Black, that Aegon the Conquerer wrote an end to.
The Westeros network consists of several different sites, including a forum and a wiki, for all your A Song of Ice and Fire needs.