Crown of Aragon
At the height of its power in the 14th and 15th centuries , the Crown of Aragon was a thalassocracy controlling a large portion of present-day eastern Spain , parts of what is now southern France , and a Mediterranean "empire" which included the Balearic Islands , Sicily , Corsica , Sardinia , Malta , Southern Italy ( from 1442 ) and parts of Greece ( until 1388 ) . 
<triplet> Spain <subj> Balearic Islands <obj> contains administrative territorial entity