Marianne Loir (attributed To) ( 1715 - 1769 ) was a French painter. Marianne Loir (attributed To) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2224.42 USD for Portrait de jeune femme à la robe bleue et au petit chien in 2004 to 2895.6 USD for Portrait d'homme assis à son bureau in 2005 , based on the size and medium of the