The ducal fiefs (Lehen) of Arlendorf or Arldorf and Adeldorf were conferred during the course of the centuries to various vassals.
In the middle of the 18th century the substantial estate came into the hands of the von Tattenbach counts from Baumgarten.
When he died on 3 October 1821 without any children, he bequeathed Adldorf, including its brewery founded in 1671, in his last will and testament to his nephew Maximilian von Arco.
Immediately next to the castle is the parish church of St Mary of the Immaculate Conception (Maria Unbefleckte Empfängnis) built in 1736.
The chapelry (Expositur) of Adldorf was founded in 1616, elevated to a parish in 1921 and incorporated into the Eichendorf team ministry (Pfarrverband) in 1963.