Well, Ilyala, there is a "new" book out there- a bio of Anne Neville. IMO its crapola, written by an anti Richard author who fills it with such contentious terms such as "Richard was a serial incester", "autocratic" and ....YES .... HUMPBACKED

However, it has its interesting (small) bits when he goes on about the age of majority, widows rights etc. He also contends that Richard and Anne were never legally married because they didn't have the adequate dispensations from the pope.
Why would Richard want to divorce Anne when he only had to wait such a short time before she died (and it was well known that her illness was hopelessly terminal)?
Why would Richard chose as his next wife, an acknowledged bastard (Elizabeth of York was just as much a bastard as her brothers which was the whole basis of him taking the throne anyway). Also, this would be Uncle marrying niece....surely incestuous.
It is such a shame that women, no matter who they were, were not thought significant enough for comment in those days,..jeeze, we don't even know the birth dates for a lot of them. There aren't even household accounts extant for Anne Neville. What a shame, she had such a fascinating but short life and we know next to nothing about it.