![](https://pplstatic.nyc3.cdn.digitaloceanspaces.com/static/images/dummy-gradient.jpg)
Quick Facts
Biography
Sándor Simonyi-Semadam (23 March 1864 – 4 June 1946) was a Hungarian politician who served as prime minister for a few months in 1920. He signed the Treaty of Trianon after World War I on 4 June 1920. By this treaty Hungary lost a considerable part of its territory. Simonyi was a member of the Hungarian-Nippon Society, a society for creating cultural links between Japan and Hungary.
After his term as prime minister he was involved in the financial sector. He was a board member of various banks . His daughter, Erzsébet Simonyi-Semadam had a son, Ernő Simonyi, a prominent lawyer, and Károly Simonyi, a nuclear physicist and university professor (father of Charles Simonyi) was raised as an adopted child.
On 4 June 1946, the twenty-sixth anniversary of the signing of the Treaty of Trianon, Simonyi-Semadam died at his home in Budapest.