I've been looking through my old LEGO collection and rebuilding a few choice sets. This castle is '6087: Witch's Magic Manor' from Fright Knights (1997/8) although I didn't know it then! a
In set 6087-1 | Brickset: LEGO set guide and database
Lego Fright Knights Set Number 6087, Witch's Magic Manor, Produced in 1997 | eBay
Lego System 6087 - Burg in Hessen - Wölfersheim | eBay Kleinanzeigen
LEGO Star Wars Tie Defender (8087)
Witch's Magic Manor - LEGO set #6087-1 - New In Box (Building Sets > Castle > Fright Knights)
LEGO System 6087 Hexengrotte, Ritter Hexen Felsenburg, 90er Jahre in Sachsen - Bautzen | Lego & Duplo günstig kaufen, gebraucht oder neu | eBay Kleinanzeigen
LEGO 6087 Witch's Magic Manor Set Parts Inventory and Instructions - LEGO Reference Guide