He was born in Carmagnola to father painter, Pietro Laveglia, (1625-1675) who had emigrated to Asti from Paris. A canvas at the Civic Gallery of the Palazzo Mazzetti, depicting Christ and the Apostles on the shores of the Borbore (circa 1671) includes a distant view of the town of Asti.[1]
In Bartoli's Notizia about artworks, he takes notice of a Laveglia d'Asti, who was a painter of quadratura in the church of San Martino of Astia.[2]
In 1677, Giovanni Antonio married Lucrezia Maria Fariano in Asti.[3] In 1708, Giovanni Carlo Aliberti married Giovanni Antonio's daughter.[4]