The rule Hagensdorf (Ahníkov) was united with Brunnersdorf in 1773 and dissolved in 1927. The castle belonged temporarily to the von Schönburg (Schumburg) family. Hagensdorf Castle emerged from a medieval fortress house .
The local residents did agriculture and were mostly employed on the exemplary manorial estate. Some worked in the surrounding mines . Hagensdorf was incorporated into the elementary school in Sosau.
- St. Anne's Chapel was built in 1831 by Countess Firmian.
- Magnificent central building of the baroque palace built in the 16th century with a pleasure garden and the romantic oak grove of the "cellar". There was an already empty monastery in 1344. The ruined castle was demolished along with the village. Because of its historical and structural importance, a model was created that is housed in Chomutov . Preserved fragments of the important castle building are said to have been placed in the Chomutov zoo (Podkrušnohorský zoopark Chomutov, "Pre-Erzgebirge zoo park Chomutov").
- Rudolf ANDĚL: a col. Hrady, zámky a tvrze v Čechách, na Moravě a ve Slezsku - Severní Čechy. Svazek III. Praha: Nakladatelství Svoboda, 1984. 664 s. Kapitola Ahníkov - zámek, s. 21. (Ahnikov Castle p. 21)
- Emanuel POCHE: Umělecké památky Čech: T / Ž. Svazek IV. Praha: Academia, 1982. 640 s. Kapitola Ahníkov, s. 450. (Ahnikov Castle, p. 450)
- Michaela Balášová: Diploma thesis on the Festive Haus Ahnikov, Czech (Ahníkov (zámek) (okres Chomutov), Zámek stával v zaniklé obci Ahníkov u Málkova mezi Kadaní a Chomutovem. Vlastníky bylikověkověkový např.