During the 14th and 15th centuries it became the seat of the administrator who was in charge of managing the silver mines in Ramingstein.

[2] The first documented mention of the name Burg Finstergruen (dark ditch) occurred in 1629.

[2] In 1899 a new owner, Count Sándor Szapary (1858-1904), bought the castle and rebuilt a comfortable house from the ruins.

[3] In the 1930s and 1940s the castle belonged to his widow, Countess Margit Szapáry, who took in selected paying guests.

[4] After the Second World War, Burg Finstergrün became a centre of the activities of the Evangelical Youth movement.