Laurentian Library in the context of "Quintus Curtius Rufus"

Michelangelo di Lodovico Buonarroti Simoni (6 March 1475 – 18 February 1564), known mononymously as Michelangelo, was an Italian sculptor, painter, architect, and poet of the High Renaissance. He was born in the Republic of Florence but was mostly active in Rome from his 30s onwards. His work was inspired by models from classical antiquity and had a lasting influence on Western art. Michelangelo's creative abilities and mastery in a range of artistic arenas define him as an archetypal Renaissance man, along with his rival and elder contemporary, Leonardo da Vinci. Given the sheer volume of surviving correspondence, sketches, and reminiscences, Michelangelo is one of the best-documented artists of the 16th century. He was lauded by contemporary biographers as the most accomplished artist of his era.

Michelangelo achieved fame early. Two of his best-known works, the Pietà and David, were sculpted before the age of 30. Although he did not consider himself a painter, Michelangelo created two of the most influential frescoes in the history of Western art: the scenes from Genesis on the ceiling of the Sistine Chapel in Rome, and The Last Judgment on its altar wall. His design of the Laurentian Library pioneered Mannerist architecture. At the age of 71, he succeeded Antonio da Sangallo the Younger as the architect of St. Peter's Basilica. Michelangelo transformed the plan so that the Western end was finished to his design, as was the dome, with some modification, after his death.

The Basilica di San Lorenzo (Basilica of Saint Lawrence) is one of the largest churches of Florence, Italy, situated at the centre of the main market district of the city, and it is the burial place of all the principal members of the Medici family from Cosimo il Vecchio to Cosimo III. It is one of several churches that claim to be the oldest in Florence, having been consecrated in 393 AD, at which time it stood outside the city walls. For three hundred years it was the city's cathedral, before the official seat of the bishop was transferred to Santa Reparata.

San Lorenzo was the parish church of the Medici family. In 1419, Giovanni di Bicci de' Medici offered to finance a new church to replace an eleventh-century Romanesque rebuilding. Filippo Brunelleschi, the leading Renaissance architect of the first half of the fifteenth century, was commissioned to design it, but the building, with alterations, was not completed until after his death. The church is part of a larger monastic complex that contains other important architectural and artistic works: the Old Sacristy (Sagrestia Vecchia) by Brunelleschi, which has interior decoration and sculpture by Donatello; the Laurentian Library (Biblioteca Laurentiana) by Michelangelo; the Medici Chapels (Cappelle Medicee), two structures that include the New Sacristy (Sagrestia Nuova) based on Michelangelo's designs; and the larger Cappella dei Principi ('Chapel of the Princes') being a collaboration between the family and architects.

The Florentine Codex is a 16th-century ethnographic research study in Mesoamerica by the Spanish Franciscan friar Bernardino de Sahagún. Sahagún originally titled it La Historia General de las Cosas de Nueva España (in English: The General History of the Things of New Spain). After a translation mistake, it was given the name Historia general de las Cosas de Nueva España. The best-preserved manuscript is commonly referred to as the Florentine Codex, as the codex is held in the Laurentian Library of Florence, Italy.

In partnership with Nahua elders and authors who were formerly his students at the Colegio de Santa Cruz de Tlatelolco, Sahagún conducted research, organized evidence, wrote and edited his findings. He worked on this project from 1545 up until his death in 1590. The work consists of 2,500 pages organized into twelve books; more than 2,000 illustrations drawn by native artists provide vivid images of this era. It documents the culture, religious cosmology (worldview) and ritual practices, society, economics, and natural history of the Aztec people. It has been described as "one of the most remarkable accounts of a non-Western culture ever composed."

The Codex Amiatinus, also known as the Jarrow Codex, is considered the best-preserved manuscript of the Latin Vulgate version of the Christian Bible. It was produced around 700 in the northeast of England, at the Benedictine Monkwearmouth–Jarrow Abbey in the Kingdom of Northumbria, now South Tyneside. It was one of three giant single-volume Bibles then made at Monkwearmouth–Jarrow, and is the earliest complete one-volume Latin Bible to survive, only the León palimpsest being older. It is the oldest Bible where all the biblical canon present what would be their Vulgate texts. In 716 it was taken to Italy as a gift for Pope Gregory II. It is named after the location in which it was found in modern times, Monte Amiata in Tuscany, at the Abbazia di San Salvatore and is now kept at Florence in the Biblioteca Medicea Laurenziana (Laurentian Library).

Designated by siglum A, it is commonly considered to provide the most reliable surviving representation of Jerome's Vulgate text for the books of the New Testament, and most of the Old Testament. As was standard in all Vulgate Bibles until the ninth century, the Book of Baruch is absent as is the Letter of Jeremiah, the text of the Book of Lamentations following the end of Jeremiah without a break. Ezra–Nehemiah is presented as a single book, the texts of the canonical Book of Ezra and Book of Nehemiah being continuous. Similarly the books of Samuel, Kings and Chronicles are each presented as a single book.

Epistulae ad Familiares (Letters to Friends) is a collection of letters between Roman politician and orator Marcus Tullius Cicero and various public and private figures. The letters in this collection, together with Cicero's other letters, are considered the most reliable sources of information for the period leading up to the fall of the Roman Republic. Traditionally spanning 16 books, and featuring letters from 62 to 43 BCE, the collection was likely first published by Cicero's freedman and personal secretary Marcus Tullius Tiro sometime after Cicero's death in 43 BCE.

A number of manuscript copies of this collection have reached modern times. The earliest witness to the text is a palimpsest on a single leaf, written in uncials of the fifth or sixth century (CLA IV.443; it contains portions of letters 6.9 and 6.10. Two more fragments from 12th-century manuscripts – the outer bifolium of an eight-sheet gathering containing 2.1.1–2.17.4, and a single leaf containing 5.10.1–5.12.2 – represent one medieval tradition. One complete manuscript survives containing the entire collection, written in the first half of the 9th century in several hands (M); at one point it was in the hands of bishop Leo of Vercelli, and it is included in the 9th-century library catalog of the Abbey of Lorsch; Coluccio Salutati made a copy of this manuscript in 1392; it currently resides at the Laurentian Library in Florence as manuscript 49.9. There are also two groups of medieval manuscripts which represent a tradition independent of M: one provides the text for books 1–8 (X), the other for books 9–16 (Y). The X tradition is contaminated by M, and thus is of less value than the Y tradition.

Flavius Eutropius (fl. 363–387) was a Roman official and historian. His book Breviarium Historiae Romanae summarizes events from the founding of Rome in the 8th century BC down to the author's lifetime. Appreciated by later generations for its clear presentation and writing style, the Breviarium can be used as a supplement to more comprehensive Roman historical texts that have survived in fragmentary condition.