 Complete the following phrase:  By the 15th century, the statue, by virtue of its prominent position, was actually believed to be that of the citys founder, Constantine the Great. Other associations were also current: the Italian antiquarian Cyriacus of Ancona was told that it represented Heraclius. It was therefore widely held that the column, and in particular the large globus cruciger, or apple, as it was popularly known, represented the citys genius loci. Consequently, its fall from the statues hand, sometime between 1422 and 1427, was seen as a sign of the citys impending doom. Shortly after their 