Another funny anecdote about this amazing woman: at some point she was annoyed at Charles II for not yet giving any title to their son yet so when he came to visit them she called for the boy by going all “eh little bastard, come and say hi to your father!”. 

Charles II was understandly shocked and was all like “babe, please don’t call our son that :(” to which she answered that if he didn’t like how she called him, he only had to give him a new title she could use. The title of Earl of Burford was created for the boy shortly after