Sándor Simonyi-Semadam

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.

Sándor Simonyi-Semadam
Prime Minister of the Kingdom of Hungary
In office 15 March 1920 – 19 July 1920
Monarch	Miklós Horthy as Regent
Preceded by	Károly Huszár
Succeeded by	Pál Teleki
Member of the House of Representatives
In office February 18, 1920 – August 16, 1922
Personal details
Born	(1864-03-23)23 March 1864 Csesznek, Kingdom of Hungary, Austrian Empire
Died	4 June 1946(1946-06-04) (aged 82) Budapest, Second Hungarian Republic
Nationality	Hungarian
Political party	Catholic People's Party (1901-1918) Christian Social People's Party (1918-1919) Christian National Union Party (KNEP) (1919-1921) National Smallholders and Agrarian Workers Party (OKGFP) (1921-1922)
Spouse(s)	Szidónia Kovács
Children	Erzsébet Margit Sándor
Profession	politician, lawyer

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.