Question: The writer from whose work the 1953 film Knights of the Round Table was adapted died in what year?
Sentence (from "Pellinore"): He has many legitimate and illegitimate children; his sons Tor, Aglovale, Lamorak, Dornar, and Percival all eventually join the Round Table as well, and his unnamed daughter (see Dindrane) becomes a servant of the Holy Grail and helps Percival, Galahad and Bors achieve the mystical objective.
Relevant evidence: No