"in the colouring of a Ghirlandaio "

Ghirlandaio's Francesco Sassetti and his Son
Public DomainGhirlandaio's Francesco Sassetti and his Son
Domenico Ghirlandaio (1449-1494) was an Italian Renaissance painter from Florence, whose apprentices included Michelangelo. Most of Swann's points of comparison are with Italian Renaissance painting and sculpture.