Daniel O'Connell, The Last King of Ireland
This is about revolution, duels, and love - love of girls until his marriage, and then of Mary, his devoted wife until the day she died. He became a lawyer, and as a barrister he won fame and fortune. As a politician he achieved greatness, and eventually became what was very close to being the ruler of Ireland ‒ the last, though uncrowned, King. The book is a novel, but historically accurate.