 In 2016, they had a son, Alexander Cedd (named after an Anglo-Saxon saint).Cummings is reportedly an admirer of Otto von Bismarck, Richard Feynman, Sun Tzu, and U.S. fighter pilot and military strategist John Boyd.Journalist Owen Bennett wrote that Cummings "is a Russophile, speaks Russian, and is passionately interested in Dostoyevsky", while Patrick Wintour in "The Guardian" reported that "Anna Karenina, maths and Bismarck are his three obsessions."