Victoria Joyce is the heroine of a fairytale told by Prairie Dawn in "Grover's Bedtime Story," as included in The Sesame Street Bedtime Storybook and elsewhere.
Victoria Joyce is the smart and beautiful daughter of King Roundtree, who fought fire breathing dragons, rode the flying horse Basingstoke, and performed other deeds. She was rewarded by the wondrous wizard of the West (played by The Amazing Mumford). Her endless exploits put Grover to sleep.