 The settlement of "Deolekingas" in the German stem duchy of Bavaria was first mentioned about 790 AD, then a possession of St Peter's Abbey, Salzburg.Temporarily the seat of a local "Amt" administration of the episcopal lands, it became part of the immediate Prince-Archbishopric of Salzburg in the late 13th century.Upon the German mediatization of 1803, Tyrlaching and the whole Rupertiwinkel region passed to the short-lived Electorate of Salzburg under Grand Duke Ferdinand III of Tuscany and fell to the newly established Austrian Empire according to the 1805 Peace of Pressburg.