“ His battle-pieces have movement and fire, warm colouring (now too often blackened) , and great command of the brush,—those of moderate dimensions are the more esteemed. They are slight in execution, and tell out best from a distance. Courtois etched with skill twelve battle-subjects of his own composition. The Dantzig painter named in Italy Pandolfo Reschi was his pupil. ”

“ His draughtsmanship is better than that of Jacques, whom he did not, however, rival in spirit, colour or composition. He also executed some etchings. Guillaume Courtois died of gout on the 15th of June 1679. ”