This was Joan Fontaine's first acting role in eight years (her last in 1986 was also a made for tv movie) and also her last before her death on December 15, 2013 at the age of 96.
Wenceslas was filmed in the winter of 1993/94 just after Jonathan Brandis acted in the first season as Lucas in SeaQuest 2034. In the space a few months he goes from a fictional futuristic role to an early medieval role, a span of over 1000 years!