By the 15th century, the statue, by virtue of its prominent position, was actually believed to be that of the city's 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 city's "genius loci". Consequently, its fall from the statue's hand, sometime between 1422 and 1427, was seen as a sign of the city's impending doom. Shortly after their conquest of the city in 1453, the Ottomans removed and dismantled the statue completely as a symbol of their dominion, while the column itself was destroyed around 1515. Pierre Gilles, a French scholar living in the city in the 1540s, gave an account of the statue's remaining fragments, which lay in the Topkapi Palace, before being melted to make cannons: