Simplify the following text for a Grade 13 native English-speaking person.
Original: A patron of the arts , she gave the Medici 's large art collection ( including the contents of the Uffizi , Palazzo Pitti and Medici villas ) which she inherited upon her brother Gian Gastoneâ s death in 1737 , and her Palatine treasures to the Tuscan state , on the condition that none of it be removed .
Simplified: A patron of the arts , she bequeathed the Medici 's large art collection , including the contents of the Uffizi , Palazzo Pitti and the Medicean villas , which she inherited upon her brother Gian Gastone 's death in 1737 , and her Palatine treasures to the Tuscan state , on the condition that no part of it could be removed from `` the Capital of the grand ducal ( sic ) State ... ( and from ) the succession of His Serene Grand Duke . ''