- Leonardo Dati
"For other uses of the word
Dati , see the disambiguation page."Leonardo Dati (1360–
16 march 1425 ) was an Italian friar and humanist. He wasMaster general of the Dominican Order from 1414 to his death.He was a Prior of
Santa Maria Novella from 1401, and took part in theCouncil of Pisa of 1409. At the time of theCouncil of Constance , Dati became Master General of a reunitedDominican Order . His sermons atPisa andConstance include references to literary texts, and he was well known as an author of commentaries onAristotle . Leonardo also gave financial aid to his brother Gregorio [or Goro] , a Florentine merchant and diarist.Both Leonardo and Gregorio Dati are attributed authorship of "
La sfera " (The sphere), an astronomical-geographic "poemetto in ottave", written in the second half of 14th century, and a work much popular in its time. This work in verse gives information about the world, the marinaresche compass and other things, adding observations, notes about travel and designs. In some manuscripts of "La sfera" there are designs representing ports, headlands, islands, linked by many lines.Dati's sermons on the feast of St. Francis (October 1416) and the feast of the
Circumcision of Jesus (January 1417) advocated respect for papal power and reform within the context of the established order. The earlier sermon touched off an exchange of polemical memoranda between Dati and supporters of conciliar supremacy. Dati then addressed issues raised in this exchange in the later sermon. Dati's discussion ofcircumcision was traditional for his time, describing the jewish rite as superseded bybaptism .He is buried in the Cappella Rucellai at Santa Maria Novella. His tombstone is attributed to
Lorenzo Ghiberti .External links
* [http://www-db2.helsinki.fi/muisti/muisti.muisti_haku.tulos_sivu?pp_kieli=e&sivuno=0&haetaan_lkm=K&v_no=0&p_tekija=Dati,_Leonardo&p_nimeke=&p_asia= The manuscript of "La sfera" (or "La Sphera") is a description of the world in poetic form.]
* Thomas M. Izbicki, "Reform and obedience in 4 conciliar sermons by Leonardo Dati, OP," in Idem, "Reform, Ecclesiology, and the Christian Life in the Late Middle Ages" (Aldershot, Ashgate, 2008) (Variorum Collected Studies).
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