Edgar Bertram (sir) Mackennal ( 1863 - 1931 ) was an Australian painter. Edgar Bertram (sir) Mackennal s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 11212.62 USD for CIRCE in 2004 to 319093.29 USD for CIRCE in 2017 , based on the size and medium of the artwork.