Agatha was the daughter of King William I and Matilda of Flanders. She was born in 1064 and died at a young age. It is possible that she was betrothed to Alfonso of Castile.
Family tree for Agatha, daughter of William I showing:
parents 
siblings 
Published Dec 29, 2017 @ 0:29 am – Updated –
Harvard Reference for this page:
Heather Y Wheeler. (2017 – 2020). Agatha of Normandy 1064 – c1073. Available: https://www.treesofblue.com/agatha-of-normandy-1064-c1073. Last accessed May 15th, 2023
