- Country: UK
- Genres: Drama
- Release: 1960-03-01
- Director: N/A
- Writers: Saunders Lewis
- Language: English
- Stars: Siân Phillips , Peter O’Toole , Clifford Evans , Doria Noar , Nigel Clayton , John DeVaut , Stephen John , Don Matthews , John Simpson , Ray Smith
- Runtime: 90 min
- Awards: N/A
- AKA: Siwan: The King's Daughter (United Kingdom)
- Plot: N/A
- IMDB:tt3665496
Siwan: The King’s Daughter Cast
Siân Phillips
Siwan
Peter O’Toole
Gwilym De Breos
Clifford Evans
Llywelyn
Doria Noar
Alis
Nigel Clayton
John DeVaut
Stephen John
Don Matthews
John Simpson
Ray Smith