Xianyu Shu ( 1256 - 1301 ) was a painter. Xianyu Shu s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from USD for in to a remarkable record 2683350.71 USD for Lan-ting Xu in Cursive Script Calligraphy in 2011 , based on the size and medium of the artwork.