Final answer:
Jean-Baptiste Lully was born in Florence, Italy and later became a French citizen. He played a major role in the development of French opera.
Step-by-step explanation:
Jean-Baptiste Lully, the French composer, was born in Florence, Italy in 1632. He later moved to France and became a French citizen. Lully played a significant role in the development of French opera and was the head of the group that created and supported a distinctive style of French opera during the reign of King Louis XIV.