Italy during the renaissance

It's a crossword so I have to fit them in:
the name of two famous statues created by Michelangelo and Donatello. (Four letter word, begins with D and ends with K)
Someone who supported the arts by supplying money. (Five letter word, ends with N)
Form of government which people elect representatives rule for the group (Eight letter word)
In the 15th Century this empire was the largest European region (fifteen letter word, third letter L, fifth letter R, seventh letter M, ninth letter E, eleventh letter I)
Just in case I have to mention this, the regions are Florence, Genoa, Venice, Milan and Papal States

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