Silvio Valenti Gonzaga
Silvio Valenti Gonzaga was an Italian nobleman and Catholic cardinal and owned a large collection of more than 800 Italian and Northern European paintings. His collection was sold in Amsterdam in 18 May 1763. He is mentioned in the provenance of the painting Portrait du graveur Paul Pontius by Anthony van Dyck (Schloss German no. 56/ French no. 77). The painting is currently in the Israel Museum in Jerusalem, Israel. Literature and Link: https://rkd.nl/en/explore/artists/Valenti%20Gonzaga%2C%20Silvio S. Slyve, “Dutch paintings in the collection of cardinal Silvio Valenti Gonzaga (1690-1756”, Simiolus 17 (1987), pp. 169-190.