Willem Adriaensz Key (circle of) ( 1515 - 1568 ) was a Dutch painter. Willem Adriaensz Key (circle of) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 27325 USD for Portrait of a Robert de Croÿ, Bishop of Cambrai (d. 1556), bust-length, in a black hat and doublet, with a lace collar and a fu in 2009 to 91903.32 USD for Christ