Sir John Brute is a fictional character from the play "The Provoked Wife," written by Sir John Vanbrugh in 1697. He is portrayed as a wealthy and boorish husband who often neglects his wife, Lady Brute, leading to her unhappiness. His character embodies the flaws of the upper class during the Restoration period, showcasing themes of marriage and social expectations. Throughout the play, Sir John Brute's behavior highlights the struggles faced by women in a patriarchal society. His lack of respect for his wife and his indulgent lifestyle serve as a critique of the moral decay and superficiality of the time.