"Miklós Ybl (6 April 1814 in Székesfehérvár – 22 January 1891 in Budapest) was one of Europe's leading architects in the mid to late nineteenth century ...
as well as Hungary's most influential architect during his career. His most well-known work is the Hungarian State Opera House in Budapest (1875–84).
After graduating from the Institute of Technology (the Politechnikum) in Vienna, Ybl became Mihály Pollack's assistant in 1832 and worked in Henrik Koch's office between 1836 and 1840. Following this, he moved to Munich and then to Italy to study. After his return, he entered into partnership with the son of Mihály Pollack, Ágoston; together they refurbished the Ikervár castle of Count Lajos Batthyány. His first main work was the church in Fót, built between 1845 and 1855." - (en.wikipedia.org 11.08.2021)
