This is Pieter Claesz, C-L-A-E-S-Z, probably mispronounced.

这是彼得·格莱兹的作品,C-L-A-E-S-Z,我可能发音不准确

耶鲁公开课 - 欧洲文明课程节选

The exhibition, officially titled Girl with a Pearl Earring: Dutch Paintings from the Mauritshuis at the de Young also features 34 other paintings by Dutch Golden Age masters, including works by Rembrandt, Peiter Claesz, Jacob van Ruisdael and Frans Hals.

BBC: Going Dutch in San Francisco

Abraham van Beyeren, Pieter Claesz and Willem Heda, the masters of the masters, could paint with no sign of a brushstroke banquet tables displaying dozens of different surfaces and reflections of food, drink and tableware, vases overflowing with 30 varieties of realistic flowers from all seasons.

WSJ: de Young Museum: More Than Just the Girl