Eleven Kingdoms (fictional) - Kheldour

The lands of Kheldour lie to the north of Gwynedd, located on the far side of the Rhendall Mountains. The sovereign Principality of Kheldour is established in the mid-sixth century, but it is eventually conquered by King Festil I Furstán of Gwynedd in the early ninth century. Kheldour remains a vassal state to Gwynedd for the next eight decades, until Earl Sighere of Eastmarch invades the land shortly after the Haldane Restoration. Sighere later swears fealty to King Cinhil I Haldane of Gwynedd, and the lands of Kheldour are incorporated into Gwynedd as the Duchy of Claibourne.