He painted the portrait of Nicholas Cratzer, astronomer to Henry VIII., which Walpole mentions as being in the Royal collection in France. This astronomer erected the dial at Corpus Christi, Oxford College, in 1550. After thirty years' residence in England, he had scarce learned to speak the language, and his Majesty asking him how that happened, he replied, "I beseech your highness to pardon me; what can a man learn in only thirty years?" The latter half of this memorable sentence may remind the reader of Sir Isaac Newton; and perhaps the study of astronomy does naturally produce such a feeling in the reflective mind.