Pierre Firens ( 1500 - 1600 ) was a Flemish painter. Pierre Firens s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 340.57 USD for Italie, Germania, Francia, Hispania in 2005 to 784.01 USD for Die sieben Planeten in 2006 , based on the size and medium of the artwork.