Path of the Pernicious
Eighty years ago, the kingdom endured a brutal succession war between the houses of Barca and Darius. Both had rightful claim to the throne, but only one could sit upon it. In a final confrontation upon the field of Tamberlyn, House Darius finished the war and took the throne, and has stayed there until today. House Barca was allowed to keep their lands as long as they swore alleigiance to the new royal family, and promised to worship Mitra, The Shining Lord, the god of the Darians.
Since this time, 5 Darian kings, all named Markadian have sat upon the throne. And in this time, all gods except for Mitra have been outlawed with brutal enforcement.