William de Rham explained

William de Rham (born 22 August 1922) is a Swiss former equestrian who competed in the 1956 Summer Olympics.^[1] He turned 100 on 22 August 2022.^[2]

Notes and References

1. https://www.sports-reference.com/olympics/athletes/de/william-de-rham-1.html . https://web.archive.org/web/20200418061845/https://www.sports-reference.com/olympics/athletes/de/william-de-rham-1.html . dead . 18 April 2020 . 13 May 2016.
2. Web site: 2023-11-07 . An Officer, an Olympian and a Centenarian . 2024-08-22 . FEI.org . en.