Noble Florentine family (6)
I believe the answer is:
medici
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">noble florentine family</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for medici that I've seen before include "Powerful Italian family in the 15th century" , "Name of great Florentine family 15-17th centuries" , "Noble Florentine family" , "Famous Florentine family name" , "aristocratic family" .)