Prior to the Ottoman conquest of Albania, the political situation of the Albanian people was characterised by a fragmented conglomeration of scattered kingdoms and principalities such as the Principalities of Arbanon, Kastrioti and Thopia. Before and after the fall of Constantinople, the Ottoman Empire continued an extended period of conquest and expansion with its borders going deep into the Southeast Europe. As a consequence thousands of Albanians from Albania, Epirus and Peloponnese escaped to Calabria, Naples, Ragusa and Sicily, whereby others sought protection at the often inaccessible Mountains of Albania.