Here's a quotation from Wikipedia:

"Anne was plagued by ill health throughout her life, and from her thirties, she grew increasingly ill and obese. Despite seventeen pregnancies, she died without surviving issue and was the last monarch of the House of Stuart."

Poor lady! When a dog is treated like this, we say she's in a puppy mill and should be freed. All this may explain why there don't seem to be any jolly songs about her.