Very little is known about either castle and they were probably both built in the 12th century for the Lords of Ramosch.

Serviezel (Ramosch) is located in the former municipality of Ramosch, while Serviezel (Tschlin) is about 6.1 km (3.8 mi) away in the former municipality of Tschlin.

Serviezel is probably named after the Wezzels, a local minor nobility family, who are first mentioned around 1150.

[1] The castle was a single rectangular tower probably with a full or partial ring wall on top of a small hill.

West of the tower there is a pile of stone which probably marks the location of a collapsed wall or outbuilding.