Giovanni Battista Calvi

Giovanni Battista Calvi (also known as Giovan Battista Calvi, Gianbattista Calvi and/or Juan Bautista Calvi) was an Italian military engineer at the service of the Spanish Monarchy during the 16th century.

Early career

Despite popular belief that Calvi was born in Sardinia, he was actually born in Lombardy in the early 16th century.

Prior to working for the Spanish Monarchy he worked as a civil engineer in Rome, under the direction of Antonio da Sangallo the Younger, on the façade of Palazzo Farnese. In 1552, he was sought out by Philip II (then only a Prince) to fortify the Spanish coasts and the frontier with France in the Roussillon.

Reputation

Calvi was the first engineer to provide comprehensive reports on the status of the defensive projects of Spain and the Spanish North-African possessions. Roses, Cádiz (where he refurbished the walls)" or Gibraltar (where he was responsible for building Charles V Wall, protecting the town from southern attacks). During his inspection trips, he visited Mers El Kébir, Oran, Melilla, Valencia, Burgos, Medina del Campo, Valladolid or Granada. and that he was "one of the best engineers of the 16th century, the first to devise a global plan for the defense of the [Iberian] Peninsula".

He died in Perpignan in 1564.