Filippo Brunelleschi

Filippo di ser Brunellesco di Lippo Lapi, known as Filippo Brunelleschi and nicknamed Pippo by Leon Battista Alberti, was an Italian goldsmith, sculptor, designer, and architect. He is regarded as a founding father of Renaissance architecture and is often called the first modern engineer, planner, and sole construction supervisor. In 1421, he earned the first patent ever granted in the Western world. He is best known for designing the dome of Florence Cathedral—the largest brick dome on Earth—and for developing linear perspective, a mathematical technique that governed how space was depicted in art until the late 1800s and helped shape modern science. His other achievements include sculpture, mathematics, engineering, and ship design, with most of his surviving works located in Florence.

Born in Florence in 1377, Brunelleschi was the son of a notary and civil servant, Brunellesco di Lippo Lapi, and Giuliana Spini. He had two brothers, and the family was wealthy—the Spini family palace still stands across from the Church of Santa Trinità. He received a literary and mathematical education meant to prepare him for his father’s career, but at fifteen he chose to apprentice as a goldsmith and sculptor working with cast bronze. By December 1398 he had become a master and joined the Arte della Seta, the wool merchants’ guild, which was the richest and most prestigious in Florence and also included jewelers and metalworkers.

Brunelleschi’s earliest surviving sculptures are two (or three) small silver saints made between 1399 and 1400 for the altar of Saint James in Pistoia Cathedral. He paused this work for four months in 1400 to serve on two representative councils of the Florentine government. Around the end of that year, Florence decided to commission a second pair of gilded bronze doors for the Baptistery. A competition was held in 1401, with seven entrants including Brunelleschi and the young sculptor Lorenzo Ghiberti. Each had to produce a single bronze panel depicting the Sacrifice of Isaac within a Gothic four-leaf frame, including Abraham, Isaac, the angel, two other figures, a donkey, and a sheep, all in harmony with the existing doors by Andrea Pisano. The jury was headed by Giovanni di Bicci de’ Medici, founder of the Medici dynasty and an important patron of Brunelleschi. The jury initially praised Ghiberti’s panel, but when they saw Brunelleschi’s work, they could not choose between the two and suggested the artists collaborate. Brunelleschi refused to give up total control, preferring that Ghiberti get the commission alone, which divided public opinion. He eventually abandoned sculpture to focus on architecture and optics, though he continued to receive sculpture commissions until at least 1416.

During the Early Renaissance, interest grew in reviving the cultural roots of Ancient Greece and Rome to move beyond medieval art dominated by Byzantine and Gothic styles. This interest began with a few scholars and writers before spreading to the visual arts. Between 1402 and 1404, Brunelleschi almost certainly visited Rome with his younger friend, the sculptor Donatello, to study ancient ruins. Donatello may also have trained as a goldsmith and later worked in Ghiberti’s studio. At the time, Rome’s glories were mostly discussed in literature, and few had studied the physical ruins in detail until Brunelleschi and Donatello did. Brunelleschi’s study of classical Roman architecture influenced his designs, which emphasized even lighting, minimized distinct architectural elements, and balanced those elements to create a unified space. Some historians speculate that he developed linear perspective after observing Roman ruins, though others doubt he visited Rome then, citing his many projects in Florence, Rome’s poverty and insecurity, and a lack of evidence. His first confirmed stay in Rome was in 1432.

Brunelleschi’s first architectural commission was the Ospedale degli Innocenti, or Foundling Hospital, designed as a home for orphans and built between 1419 and about 1445. The Guild of the Silk Merchants owned, funded, and managed it. Like many of his projects, the building was completed after long delays and with significant changes by other architects. He served as official architect until 1427 but was rarely on site after 1423. The hospital officially opened on 25 January 1445. His friend, the Florentine banker and politician involved from the start, was one of several capomaestri who later expanded the building.