Filippo di ser Brunellesco di Lippo Lapi (1377 – 15 April 1446), often called Filippo Brunelleschi (pronounced BROO-nuh-LESK-ee) and nicknamed Pippo by Leon Battista Alberti, was an Italian architect, designer, goldsmith, and sculptor. He is regarded as one of the first people to start Renaissance architecture. He is known as the first modern engineer, planner, and the only person who oversaw the construction of buildings. In 1421, Brunelleschi received the first patent in the Western world. He is most famous for designing the dome of the Florence Cathedral and for creating a method called linear perspective that uses math to show space in art. This method was used in art to show space until the late 1800s and helped modern science develop. His work also includes sculpture, math, engineering, and designing ships. Most of his surviving works are located in Florence.

Biography

Brunelleschi was born in Florence, Italy, in 1377. His father was named Brunellesco di Lippo, who was born around 1331. He worked as a notary and a civil servant. His mother was Giuliana Spini, and he had two brothers. The family was wealthy, and the palace of the Spini family still stands today across from the Church of Santa Trinità in Florence. When Filippo was young, he studied literature and math to prepare for his father’s career. However, he was interested in art, so at age fifteen, he became an apprentice to a goldsmith and a sculptor who worked with cast bronze. In December 1398, he became a master craftsman and joined the Arte della Seta, the wool merchants’ guild, which was the wealthiest and most respected guild in Florence. It also included jewelers and metalworkers.

Brunelleschi’s earliest surviving sculptures are two (or three) small silver statues of saints (1399–1400) made for the altar of Saint James in the Crucifix Chapel of Pistoia Cathedral San Zeno. He paused this work for four months in 1400 when he was chosen to serve two councils of the Florentine government at the same time.

At the end of 1400, the city of Florence decided to create a second set of new sculpted and gilded bronze doors for the Florence Baptistery. A competition was held in 1401, with seven competitors, including Brunelleschi and a young sculptor named Lorenzo Ghiberti. Each artist had to make a single bronze panel showing the Sacrifice of Isaac within a Gothic four-leaf frame. Each panel had to include Abraham, Isaac, an angel, two other figures, a donkey, and a sheep. The artists could imagine the donkey and sheep. The panels also had to match the style of the existing doors, made in 1330 by Andrea Pisano. The head of the jury was Giovanni di Bicci de’ Medici, who later became an important supporter of Brunelleschi. The jury first praised Ghiberti’s panel. When they saw Brunelleschi’s work, they could not choose between the two and suggested the artists collaborate. Brunelleschi refused to share control of the project and instead supported Ghiberti. This decision caused public debate.

Brunelleschi later stopped working as a sculptor and focused on architecture and optics. However, he still accepted sculpture commissions until at least 1416.

• St. John the Evangelist, Silver Altar of Saint James, Pistoia Cathedral (1399–1400)
• Jeremiah and Isaiah, altarpiece of St. James
• The Sacrifice of Isaac, Brunelleschi’s competition panel for the Baptistry door in Florence (1401), Bargello

During the Early Renaissance, people became more interested in the cultures of Ancient Greece and Rome. They wanted to revive these traditions to move away from medieval art, which was often influenced by Byzantine styles and Gothic art from northern Europe. At first, this interest was limited to scholars and writers, but it later affected visual artists. In this period (1402–1404), Brunelleschi visited Rome, likely with his younger friend, the sculptor Donatello, to study ancient ruins. Donatello may have trained as a goldsmith, like Brunelleschi, and later worked in the studio of Ghiberti. Although ancient Rome was a popular topic of discussion, few people had studied its ruins in detail until Brunelleschi and Donatello did so. Brunelleschi’s study of classical Roman architecture influenced his building designs, including how he used light, minimized distinct architectural elements, and balanced those elements to make spaces look uniform.

Some people believe Brunelleschi developed his system of linear perspective after studying Roman ruins. However, some historians disagree, citing his many projects in Florence, the dangers in Rome during that time, and a lack of clear evidence for his visit. His first confirmed trip to Rome was in 1432.

Brunelleschi’s first major architectural project was the Ospedale degli Innocenti (1419–about 1445), also known as the Foundling Hospital, designed as a home for orphans. The Guild of the Silk Merchants owned, funded, and managed the hospital. Like many of Brunelleschi’s projects, the building took a long time to complete and was changed by other architects. Brunelleschi was the official architect until 1427 but was rarely on-site after 1423. The hospital officially opened on January 25, 1445. His friend, the Florentine banker and architect Francesco Della Luna, who was involved from the start, was one of several architects later responsible for expanding the building.

The main part of the hospital designed by Brunelleschi was the loggia, which forms the façade. The steps leading to the elevated arcade were not completed until 1457. Nine semicircular arches supported by ten slender columns with composite capitals are flanked by angular fluted pilasters on the façade. The vaults show no cracks. On both ends, fake door frames with tympanums decorate the walls. Three doors, equally spaced, open to the interior. This first arcade, with its simple classical style, became a model for many Renaissance buildings across Europe. The building’s design was dignified and plain, with no use of fine marble or decorative inlays. Glazed terracotta reliefs by Andrea della Robbia were added later, in 1490.

• Arcade of the Foundling Hospital (1419–1445) on the Piazza of Santissima Annunziata with its corresponding portico by Giovanni Battista Caccini (1601

Accomplishments

Filippo Brunelleschi was a famous architect and inventor. He is known for creating the first clear system of linear perspective, which changed how paintings were made. This system helped artists create realistic images of three-dimensional spaces on flat surfaces, a style that was used in Renaissance art until the 19th century. He studied how objects, buildings, and landscapes looked different from various angles and distances, and how their shapes and lines seemed to come together when viewed from afar.

According to early records by Antonio Manetti, Brunelleschi tested his ideas between 1415 and 1420. He painted scenes of the Florence Baptistery and Palazzo Vecchio from specific viewpoints. He used a grid to guide his drawings and made a reversed image. He calculated the size of objects in his paintings so they appeared accurate, discovering a way to show three-dimensional scenes on two-dimensional surfaces. To test his work, he made a small hole in his painting and let someone look through it from the back. Then, a mirror reflected his painting, and the viewer saw how closely it matched the real scene. Both paintings are now lost.

Later artists, such as Leon Battista Alberti, Piero della Francesca, and Leonardo da Vinci, built on Brunelleschi’s work. Alberti wrote a famous book on painting, Della pittura, in 1436, which honored Brunelleschi. Masaccio’s painting The Holy Trinity (1425–1427) in Florence’s Santa Maria Novella church is an early example of using accurate perspective. This painting created the illusion of three-dimensional space and used Brunelleschi’s architectural style. These techniques became the standard for artists until the 19th century.

• The painting The Holy Trinity (upper part) by Masaccio (1425–1427) used Brunelleschi’s perspective system
• A diagram of Brunelleschi’s perspective experiment
• The Delivery of the Keys, a fresco by Perugino in the Sistine Chapel (1481–1482), includes both linear perspective and Brunelleschi’s architectural style

In 1421, Brunelleschi received one of the first modern patents for inventing a river transport vessel. This boat was designed to carry goods on the Arno River more cheaply and efficiently, especially marble. This invention is important in patent history because it showed how creative individuals could work outside traditional guild systems.

Brunelleschi was also involved in shipbuilding. In 1427, he built a large boat named Il Badalone to transport marble from Pisa to Florence. However, the ship sank on its first trip, losing much of his money.

Brunelleschi studied mathematics, engineering, and ancient buildings. He designed hydraulic machines and clockwork systems, though none of these survive today.

He also created machinery for religious performances in churches. These devices allowed actors and angels to appear to fly during events with fireworks and light displays. At least one such project, for the church of San Felice, is recorded.

Brunelleschi designed military fortifications for Florence. In 1424, he worked on defenses in Lastra a Signa, a village near Pisa. In 1431, he helped build walls in Staggia, southern Italy. These walls still exist, but it is unclear if Brunelleschi designed them.

Brunelleschi also planned cities. He positioned buildings like the Church of San Lorenzo and Santo Spirito to face public squares and streets, making them more visible. For example, in 1433, parts of buildings near San Lorenzo were demolished to create a piazza in front of the church. At Santo Spirito, he suggested turning the church’s façade toward the Arno River or a large piazza to improve visibility.

Personal life

Brunelleschi did not have any children, but in 1415, he adopted Andrea di Lazzaro Cavalcanti. Andrea took the name Il Buggiano, which means "from Buggiano," his birthplace. He was Brunelleschi's only heir.

Brunelleschi belonged to the guild of silk merchants, which included jewelers and goldsmiths. He was not part of the guild of stone and wood masters, which included architects. In 1434, he was arrested by the stone and wood masters' guild because they claimed he was working without permission. He was released soon after, and the guild was found guilty of falsely imprisoning him.

Location of remains

Filippo Brunelleschi's body is buried in the underground chamber of the Cathedral of Florence. Antonio Manetti, who knew Brunelleschi and wrote about his life, stated that Brunelleschi was honored by being buried in the Basilica di Santa Maria del Fiore. A marble statue of him, said to be carved from life, was placed there with a special inscription. The inscription near the cathedral entrance reads: "The grand dome of this famous church and many other inventions by Filippo the architect show his great skill. Because of this, a thankful country that will always remember him buries him here beneath the ground." Later, a statue of Brunelleschi, looking upward at his dome, was placed in the square in front of the cathedral.

Fictional depictions

In 2016, the character of Brunelleschi was portrayed by Alessandro Preziosi in the television series Medici: Masters of Florence.

In 1995, Brunelleschi was portrayed by John Rowe in an audio drama titled Battle for the Dome, created by Jean Binnie. This drama was produced by BBC Radio 4 in 2025.

Principal works

The main buildings and structures designed by or involving the work of Brunelleschi, all located in Florence:

• Dome of the Florence Cathedral (1419–1436)
• Ospedale degli Innocenti (1419–around 1445)
• The Basilica of San Lorenzo (1419–1480s)
• Meeting Hall of the Palazzo di Parte Guelfa (1420s–around 1445)
• Sagrestia Vecchia, or Old Sacristy of S. Lorenzo (1421–1440)
• Santa Maria degli Angeli: unfinished, started in 1434
• The lantern of Florence Cathedral (1436–around 1450)
• The exedrae of Florence Cathedral (1439–1445)
• The church of Santo Spirito (1441–1481)
• Pazzi Chapel (1441–1460s)