Bessie Blount and Catherine of Aragon...
According to Philippa Jones in her work "The Other Tudors", Henry's wife visited Bessie Blount upon the birth of Henry Fitzroy...and offered her congratulations.
There are source notes used by Ms Jones, but nothing which pertains to this particular sentence.
What do other historians think? Did the visit occur?
I will say, there are quite a few statements in this book that cause me to frown. This sentence shouted out at me for some kind of clarification.