Major Thomas David Freeman-Mitford (2 January 1909 – 30 March 1945) was the only son of the 2nd Baron Redesdale and brother of the Mitford Sisters.

During the Second World War, Mitford joined the British Army, and was initially deployed to Italy and North Africa.

[2][3] In the late 1920s, Mitford studied law in Berlin, and it was at that time that he displayed a favour for the Nazi Party.

He took the role of the imaginary reclusive artist, Bruno Hat; other Bright Young Things involved were Brian Howard, Evelyn Waugh, Bryan Guinness, and John Banting.

[8] In the summer of 1930, Mitford met Sheilah Graham, who would later describe him in her memoirs, Beloved Infidel, as "a youthful edition of his father and, at twenty-one, one of the handsomest men I had ever seen".