Jacopo Dondi dall'Orologio

Jacopo Dondi wrote on a number of subjects, including surgery, pharmacology, astrology and natural science.

In about 1327 he married Zaccarota Centrago or Centraco, with whom he had eight children;[1] the second-born child, Giovanni, became famous as the builder of the Astrarium.

He supervised the construction of a large public clock with a dial, commissioned by Prince Ubertino I da Carrara.

[1] The most celebrated work of Jacopo Dondi is the Aggregator or Promptuarium medicinae ed Enumeratio remediorum simplicium et compositorum, completed in 1355 and conserved in manuscript in the Vatican (Vat.

2462, 14th century), the Collegio di Spagna, Bologna (MS 153, dated 1425) and the Bibliothèque Nationale in Paris (Lat.

[1] Dondi made an adaptation to the meridian of Padua of the astrological Tabulae de motibus planetarum or Toletanae, the alfonsine tables attributed to Alfonso X el Sabio, King of Castile.

The work was in the possession of Giovanni in 1389, and was cited and praised by Beldomandi in his Canones de motibus corporum supercoelestium (1424), but was later lost.

[1] In his Ad inveniendum primum ascendens nativitatis, preserved in manuscripts in the Bodleian Library, Oxford (1468; Canon.

Bernardino Scardeone records a manuscript copied in Venice in 1372 of Dondi's expositiones on the Magnae derivationes of Uguccione da Pisa.