Information: - The Renaissance was a period in European history, from the 14th to the 17th century, regarded as the cultural bridge between the Middle Ages and modern history. It started as a cultural movement in Italy in the Late Medieval period and later spread to the rest of Europe, marking the beginning of the Early Modern Age. - The Virgin and Child with Four Angels is a bronze roundel by Florentine artist Donatello ( c. 1386 - 1466 ) . It is also known as the Chellini Madonna as Donatello gave it to his doctor Giovanni Chellini in 1456 . This was documented in the physician 's account book on 27 August 1456 '' while I was treating Donato called Donatello , the singular and principal master in making figures of bronze of wood and terracotta ... he of his kindness and in consideration of the medical treatment which I had given and was giving for his illness gave me a roundel the size of a trencher in which was sculpted the Virgin Mary with the Child at her neck and two angels on each side '' . The reverse of the roundel is hollowed out , creating a mould for casting replicas of the image in molten glass . In order to test out this unique feature , copies of the roundel were made from which glass versions were cast . - Padua (or ) is a city and "comune" in Veneto, northern Italy. It is the capital of the province of Padua and the economic and communications hub of the area. Padua's population is 214,000. The city is sometimes included, with Venice (Italian "Venezia") and Treviso, in the Padua-Treviso-Venice Metropolitan Area, which has a population of c. 1,600,000. - Donato di Niccolo di Betto Bardi (c. 1386 13 December 1466), better known as Donatello, was an early Renaissance sculptor from Florence. He studied classical sculpture, and used this to develop a fully Renaissance style in sculpture, whose periods in Rome, Padua and Siena introduced to other parts of Italy a long and productive career. He worked in stone, bronze, wood, clay, stucco and wax, and had several assistants, with four perhaps being a typical number. Though his best-known works were mostly statues in the round, he developed a new, very shallow, type of bas-relief for small works, and a good deal of his output was larger architectural reliefs. What is the relationship between 'virgin and child with four angels ' and 'sculpture'?
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