Domenico Trezzini

Domenico Trezzini (c. 1670–1734) was a Swiss-Italian architect from Ticino who became the first architect of St Petersburg. After training in Italy and working in Copenhagen, he was recruited by Peter I and reached the new capital in 1704.

He contributed to major projects including the Peter and Paul Fortress and its cathedral (1712–1733), the Summer Palace, the Twelve Collegia and the Alexander Nevsky Monastery. He founded a school on the European model, helped define the Petrine Baroque and trained Mikhail Zemtsov and other Russian architects, dying in St Petersburg in 1734.