Simone da Orsenigo

Simone da Orsenigo was a fourteenth-century Lombard architect and builder, probably a native of Orsenigo near Como. He is remembered for his work on Milan Cathedral, where a document of 1387 names him its first general engineer and master.

He initially raised the structure in brick in the Lombard style. Replaced as engineer by Nicolas de Bonaventure in 1389, he kept working at the cathedral until 1395.