Prince John had severe epilepsy and was probably on the autism spectrum, but wasn't badly treated, Jalima. In fact it seems that he got more affection from his parents than his siblings did. He was well cared for on the Sandringham Estate and actually not really hidden away - he appeared in official family photos and there are stories of the rather embarrassing things he said to visiting dignatories. It would be a nice tribute to him if the name could be revived.