A triple knot

Since Historical Fiction is my favourite genre, I always try to finish a novel that falls into this category, even if I find it really mediocre at some point. Unfortunately A Triple Knot is an exception. I gave up around the 50% mark, I just couldn't continue reading. How can a writer create such a boring book about one of the most intense, tumultuous eras in British History? Joan of Kent, the Black Prince, queen Isabella, queen Philippa and so many others...They were interesting, intriguing historical figures. In this novel, they are turnt into poorly-written characters of a Late Middle Ages soap-opera. We're talking snooze-fest stuff here.Even Thomas Holland, brave, black-wearing, dashing, cannot escape. And just how many times can one read about various fittings of various gowns?