| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Jan Daniël Hendrik•de Beaufort |
| Used name | Jan•de Beaufort |
| Born | 2 December 1880 in Doorn, Utrecht (NED) |
| Died | 2 April 1946 in Den Haag (The Hague), Zuid-Holland (NED) |
| Title(s) | Jonkheer |
| NOC | Netherlands |
Long-time member of Raad van State (governmental advisory council).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1908 Summer Olympics | Fencing | NED |
Jan de Beaufort | |||
| Sabre, Individual, Men (Olympic) | =5 p13 r1/4 | |||||
| 1912 Summer Olympics | Fencing | NED |
Jan de Beaufort | |||
| Épée, Individual, Men (Olympic) | =4 p4 r2/4 | |||||
| Épée, Team, Men (Olympic) | Netherlands | |||||
| 1924 Summer Olympics | Fencing | NED |
Jan de Beaufort | |||
| Épée, Individual, Men (Olympic) | 7 p7 r1/4 | |||||
| Épée, Team, Men (Olympic) | Netherlands | 3 p3 r2/4 |