Schor also helped decorate rooms of the Vatican and in Palazzo Borghese, where he collaborated with Carlo Rainaldi on the fountain for the nymphaeum in the courtyard, depicting Venus at the Bath. He supplied illusionistic quadratura suggesting sculptural enframements for ceilings at Palazzo Colonna, (1665-1668), where the painted subjects were provided by Giovanni Coli and Filippo Gherardi.Kellermann 1924, 155-156)
