Johann Baptista Vanacker ( 1794 - 1863 ) was a Belgian painter. Johann Baptista Vanacker s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 173.78 USD for Two portraits of Ladies, possibly members of the Fuller family in 2004 to 969.36 USD for A gentleman and lady of the Pugh family in 2005 , based on the size and medium of the art