Frans Pourbus I (after) ( 1545 - 1581 ) was a Flemish painter. Frans Pourbus I (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4690.06 USD for PORTRAIT OF A BEARDED GENTLEMAN, BUST LENGTH, WITH A RUFF COLLAR in 2006 to 7919.22 USD for Portrait of a man, presumably John Fischer, Bishop of Rochester in 2008 , based on the