 From his children, Boyle expected obedience, although he was a genuinely affectionate father, and far more forgiving of opposition from them than from his political enemies.Lady Mary, "my unruly daughter" angered her father by refusing to marry Lord Clanbrassil on the rather modern ground that she found him repulsive, and again by marrying the future Earl of Warwick, who was then a penniless younger son, against her father's wishes; but they were soon reconciled and he furnished her with a generous dowry.Boyle died at Youghal in September 1643, having been chased off his lands in the Irish Rebellion of 1641.