Jean de Boulogne, also known as Giambologna, was a prominent Flemish sculptor born in 1529. He is best known for his dynamic and expressive marble sculptures, which often depict mythological and religious themes. His work is characterized by intricate details and a mastery of form, making him a key figure in the Mannerist style of art. He moved to Florence in 1550, where he became the official court sculptor for the Medici family. Boulogne's most famous works include the Rape of the Sabine Women and the Equestrian Statue of Cosimo I. He significantly influenced the development of sculpture in the late Renaissance.