The title character of one of this writer's works is only able to redeem hi
The title character of one of this writer's works is only able to redeem himself after destroying Constance de Beverly to marry Clare de Clare by dying valiantly in battle. In addition to writing the epic poem Marmion, this author also inspired many musical works; in particular, an opera by Rossini inspired by a poem featuring a battle between Roderick Dhu and James Fitz-James. In addition to The Lady of the Lake, this author also wrote several novels in the Waverley series. These works include one in which the title character kills the protagonist's cousin, eventually allowing him to marry his other cousin Diana, and another, in which the title character saves the life of Rebecca, but ends up marrying Rowena. For 10 points, who is this Scottish author of Rob Roy and Ivanhoe?
The title character of one of this writer's works is only able to redeem himself after destroying Constance de Beverly to marry Clare de Clare by dying valiantly in battle.
Walter {Scott}