He married, firstly, Lady Sarah Boyle, daughter of Richard Boyle, 1st Earl of Cork, and Catherine Fenton; this marriage produced a son, Kildare Digby (c. 1627 – 1661). Digby married secondly, Elizabeth Altham, daughter of Sir James Altham and his second wife, Mary Stapers. Digby died in 1642 and was succeeded in the barony by his son Kildare.
He wedded, initially, Lady Sarah Boyle, daughter of Richard Boyle, 1st Earl of Cork, and Catherine Fenton; this union produced a son, Kildare Digby (c. 1627 – 1661). Digby married secondly, Elizabeth Altham, daughter of Sir James Altham and his second wife, Mary Stapers. Digby passed away in 1642 and was succeeded by his son Kildare.