|Coat of arms||
A bronze disk surrounded with red flames on a white field|
(Argent, a roundel bronze inflamed gules)
|Title||Magnar of Thenn|
|Overlord||House Baratheon of Dragonstone|
A Dance with Dragons
House Thenn is created from the marriage arranged by Jon Snow, Lord Commander of the Night's Watch, between Sigorn, the Magnar of Thenn, and Lady Alys Karstark. Alys is the heir of her brother, Harrion Karstark, the rightful Lord of Karhold currently imprisoned at Maidenpool. Jon arranges the marriage to protect Alys, whom he had known as a child, from being forcibly married to her cousin, Cregan Karstark, as Cregan's branch of the family wishes to claim Karhold by having Harrion killed and Cregan has already lost, perhaps killed, two wives already. Melisandre performs the wedding ceremony at Castle Black.
Should Harrion Karstark die without any offspring, House Thenn may become the new Lords of Karhold. House Thenn currently commands 200 warriors. Unlike most of the other free folk, the warriors of House Thenn are equipped with bronze armor and weapons.
House Thenn at the end of the third century
The known Thenns during the timespan of the events described in A Song of Ice and Fire are: