 Delves married Christian, a daughter of Sir William FitzWilliam, of Northamptonshire, the widow of Sir Richard Wingfield, who had died by June 1559.He thus became the step-father of Christian's sons Richard, later first Viscount Powerscourt, and John Wingfield.On 8 March 1582/83, Delves married secondly Anne Esley, or Isley, of Westminster.