As a boy he learned the rudiments of painting and architecture from his father Giulio, an architect and engineer who studied under Antonio da Sangallo, and his aunt Teodora, who was said to have studied under the painter Perugino and also wrote a commentary on Euclid.
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When the pontiff commissioned the architect Domenico Fontana to repair the Claudian harbour it was Danti who furnished the necessary plans.
Ignazio Silone | Ignazio Visco | Ignazio Giunti | Ignazio Gardella | Ignazio Ciufolini | 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 |
One of Lanci's most extravagant productions was for a performance of Giovan Battista Cini's La Vedova (The Widow), staged in Florence in 1569, with amazingly extravagant costumes by Bernardo Buontalenti, the event was recorded by the mathematician Ignazio Danti who was so impressed by Lanci's theatrical engineering he included a drawing of his periactoi stage.