Family
- mother Kathy Ceaton: had been in a relationship with Robert Vaughn at the time of Matthew's conception and birth
- father Robert Vaughn: played Napoleon Solo in the television series "The Man from U.N.C.L.E."; was believed to be Matthew's biological father; Robert Vaughn had always denied that he was Matthew's father; It was proved, both scientifically and legally in the 1980s that Robert Vaughn was not Matthew's biological father
- father George Albert Harley Drummond: (also known as George de Vere Drummond) a minor British aristocrat who is the godson to the late King George VI and godfather to model Jodie Kidd; it was proved, both scientifically and legally in the 1980s that George Albert Harley Drummond was in fact Matthew's biological father; following the resolution, Matthew adopted (for private use) the name Matthew de Vere Drummond
- daughter Clementine De Vere Drummond: born November 11, 2004; mother, Claudia Schiffer
- son Caspar Matthew De Vere Drummond: born January 30, 2003; mother, Claudia Schiffer
Companions
- wife Claudia Schiffer: married in Suffolk on May 25, 2002
