Francis Alleyne (after) ( 1750 - 1815 ) was a British painter. Francis Alleyne (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 227.21 USD for Portrait of a gentleman, half-length, in a dark olive coat with black collar in 2004 to 964.51 USD for Portrait of Thomas Allason (1790-1852) in 2007 , based on the size and medium