“ The works that can with certainty be ascribed to his own brush are remarkable for their sincerity, severe drawing and harmonious colour, but comparatively few of the two thousand or more portraits that bear his name are wholly his own handiwork. ”

“ He subsequently became a pupil of Willem Willemz and Augusteyn of Delft, until Anthonie van Montfoort (Blocklandt) , who had seen and admired two of Mierevelt’s early engravings, “Christ and the Samaritan” and “Judith and Holofernes,” invited him to enter his school at Utrecht. Devoting himself first to still life, he eventually took up portraiture, in which he achieved such success that the many commissions entrusted to him necessitated the employment of numerous assistants, by whom hundreds of portraits were turned out in factory fashion. ”

“ Many of his pupils and assistants rose to fame. The most gifted of them were Paulus Moreelse and Jan van Ravesteyn. His sons Pieter (1596–1623) and Jan (d. 1633) , and his son-in-law Willem Jacobz Delff, probably painted many of the pictures which go under his name. ”