In 1720 he was commissioned to build or renovate the new defensive system of the Duchy of Savoy whose necessity had emerged after the Treaty of Utrecht.
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He made works of civil and military engineering in Alessandria and in Fenestrelle and built the so-called "road of the guns", a trail between the valleys Varaita and Maira.
Ignazio Silone | Ignazio Visco | Ignazio Giunti | Ignazio Gardella | Ignazio Ciufolini | Adrianna Bertola | Sant'Ignazio | Paolo Ignazio Maria Thaon di Revel | Ignazio Porro | Ignazio Marino | Ignazio Licata | Ignazio Danti | Ignazio Collino | Ignazio Abate | Count Ignazio Alessandro Cozio di Salabue |