Constant Troyon (attributed To) ( 1810 - 1865 ) was a French painter. Constant Troyon (attributed To) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 599.28 USD for Watering cattle in pasture in 2004 to 46865.14 USD for Two tethered hounds, one drinking water, in a landscape; and Two tethered hounds, one sitting, in a landscape