John Keyse Sherwin ( 1751 - 1790 ) was a British painter. John Keyse Sherwin s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 4217.45 USD for THE INSTALLATION BANQUET OF THE KNIGHTS OF ST PATRICK IN THE GREAT HALL, DUBLIN CASTLE, 17TH MARCH 1783 in 2004