The Citadel is an archive of information for George R.R. Martin's A Song of Ice and Fire.
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Also, I hate to tell you, but I have added some more houses lately. Mostly just inventing for the sake of inventing... (I seem to make up heraldry as a means of unwinding these days) but two of them, now extinct (Tarbeck and Reyne, both in the Westerlands) are referred to several times in SOS. They were rebellious Lannister vassals crushed by Lord Tywin in his youth. The Reynes even have a song about them...
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