Tilarnia is the most populous Province in Kizenia, and the home of its capital city. The Province has existed in its current form for centuries, occupying the lands north of the Tiania border and west of the Tilarnia River, for which the province is named, and the Kutohaderia River. Tilarnia Province was created in the 1800s, divided from Kuzaki Colony (which at the time also included Kutohaderia), becoming the fourth of the Endralonian Colonies of Keris.