Philip Brunswick Is Getting Married

Philip Brunswick is the second born son to Anthony Brunswick, Duke of Circhester.
He doesn't wish to take on the responsibilities of being the next in line to the Dukedom and he certainly doesn't wish to marry Elizabeth Clancey; the young lady he is supposed to be betrothed to...
Philip discovers to his horror that along with inheriting his brother's title, he also seems to have inherited his bride and it's the last thing he wants since he is secretly in love with his best friends' sister...