William the Absolute Youngest is the last child of Old William and the smallest child in the village of Santoff Claussen.
William the Absolute Youngest is a very friendly, playful and courageous, if not naive, little boy. Much like the rest of the children of Santoff Claussen, he enjoys taking part in Ombric's lessons and finding new ways to avoid bedtime. He enjoys playing various games with the other children and The Bear.
The youngest William is not only the smallest of Old William's Children, but the shortest of all the children of Santoff Claussen, suggesting he may also be the youngest child.
William riding on one of Bunny's mechanical eggs
Standing amongst the other children and his brother, Tall William