Thomas de Keyser ( 1596 - 1667 ) was a Dutch painter. Thomas de Keyser s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 107935.61 USD for Group portrait of three gentlemen seated in black costumes with lace collars and cuffs in 2002 to a remarkable record 1482500 USD for Portrait of a gentleman, bust-length, in a brown doublet an