Giovanni Magenta (; 1565–1635) was an Italian architect. He designed the cathedral of ''San Pietro'' at

Bologna Bologna (, , ; egl, label= Emilian, Bulåggna ; lat, Bononia) is the capital and largest city of the Emilia-Romagna region in Northern Italy. It is the seventh most populous city in Italy with about 400,000 inhabitants and 150 different nat ...

(1605). It was later modified by

Alfonso Torreggiani Alfonso Torreggiani (1682–1764) was an Italian architect of the Rococo period, principally associated with Bologna. Life Torregiani was born in Budrio. An apprentice of Giuseppe Antonio Torri, he became intensely active in the city of Bol ...

(1765). He designed the church of ''San Salvatore ''in Bologna (1605–1623) and ''San Paolo'' (begun 1606).

Leonardo's journals

Leonardo da Vinci Leonardo di ser Piero da Vinci (15 April 14522 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, Drawing, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially res ...

's notebooks were entrusted to his pupil and heir

Francesco Melzi Francesco Melzi, or Francesco de Melzi (1491–1570), was an Italian painter born into a family of the Milanese nobility in Lombardy. He became a pupil of Leonardo da Vinci and remained as his closest professional assistant throughout his career. ...

after Leonardo's death for publication. After Melzi's death in 1570, the collection passed to his son, the lawyer Orazio, who initially took little interest in the journals. In 1587, a Melzi household tutor named Lelio Gavardi took 13 of the manuscripts to Florence, intending to offer them to the

grand duke of Tuscany The rulers of Tuscany varied over time, sometimes being margraves, the rulers of handfuls of border counties and sometimes the heads of the most important family of the region. Margraves of Tuscany, 812–1197 House of Boniface :These were origin ...

. However, following

Francesco I de' Medici Francesco I (25 March 1541 – 19 October 1587) was the second Grand Duke of Tuscany, ruling from 1574 until his death in 1587. He was a member of the House of Medici. Biography Born in Florence, Francesco was the son of Cosimo I de' Medic ...

's untimely death, Gavardi took them to Pisa to give to his relative

Aldus Manutius the Younger Aldus Manutius, the Younger ( it, Aldo Manuzio il Giovane) (13 February 1547 — 28 October 1597) was the grandson of Aldus Manutius and son of Paulus Manutius. He was the last member of the Manuzio family to be active in the Aldine Press that his ...

; there, Magenta reproached Gavardi for having taken the manuscripts illicitly. Gavardi acknowledged his fault and asked Magenta, who had finished his studies and was going home to Milan, to return them to Orazio. Having many more such works in his possession, Orazio gifted the 13 volumes to Magenta. When news spread of these lost works of Leonardo's, Orazio retrieved seven of the 13 manuscripts from Magenta's brother, and gave them to

Pompeo Leoni :''For the early 17th-century composer, see Leone Leoni (composer)''. Leone Leoni (ca. 1509 – 22 July 1590) was an Italian sculptor of international outlook who travelled in Italy, Germany, Austria, France, Spain and the Netherlands. Leoni is re ...

for publication in two volumes; one of these was the

Codex Atlanticus The Codex Atlanticus (Atlantic Codex) is a 12-volume, bound set of drawings and writings (in Italian) by Leonardo da Vinci, the largest single set. Its name indicates the large paper used to preserve original Leonardo notebook pages, which was us ...

Leonardo's journals

References

Further reading