Adam Clark
Adam Clark (14 August 1811 – 23 June 1866) was a Scottish civil engineer, best known for his career in Hungary. His most famous work is the Széchenyi Chain Bridge over the Danube River in Budapest. Clark oversaw its construction from 1839 to 1849, and ensured its safety during the Hungarian Revolution of 1848. He remained in Hungary after the bridge's completion, and married a Hungarian, Mária Áldásy.
n 1850, Clark was commissioned by the Hungarian government to design and build a tunnel under Buda Castle, emerging directly opposite the Chain Bridge.