Ostasio I da Polenta (died 14 November 1346) was lord of Ravenna from 1322 until his death.
He was the son of Bernardino da Polenta, lord of Cervia. On 20 September 1322 he profited from the absence of Guido Novello da Polenta to seize power in Ravenna, killing the archbishop Rinaldo da Polenta. Four years later Ostasio had his uncle Bannino da Polenta, who held power in Cervia, killed, assuming thenceforth the lordship of that city also.
Ostasio was also a patron of the arts, and housed Giovanni Boccaccio in his court (1345–1346).
Pope Benedict XII legitimised his power with the title Papal vicar, but soon afterwards Ostasio died, allegedly assassinated by his son Bernardino.
The da Polenta family or Polentani was an old Italian noble family whose name derives from the Castle of Polenta near Bertinoro in Romagna.
Ostasio III da Polenta was the last lord of Ravenna of the da Polenta family.
Obizzo da Polenta was an Italian nobleman and politician and the lord of Ravenna of the da Polenta family.
Guido I da Polenta was lord of Ravenna from 1275 until his abdication in 1297.
Lamberto I da Polenta was lord of Ravenna from 1297 until his death.
Guido II da Polenta, also known as Guido Novello, was an Italian who served as lord of Ravenna from 1316 until 1322.
Bernardino da Polenta was lord of Cervia from 1297 until his death. He was the son of Guido I da Polenta.
Bernardino da Polenta may refer to:
Bannino da Polenta was lord of Cervia from 1313 until his death. He was the son of Guido I da Polenta.
Pandolfo da Polenta was for a short time the joint lord of Ravenna and Cervia from 1346 until his death.
Lamberto II da Polenta was briefly jointly lord of Ravenna and Cervia from 1346 until his death.
Bernardino I da Polenta was lord of Ravenna and Cervia from 1346 until his death.
Guido III da Polenta was a lord of Ravenna, Italy and a member of the da Polenta family.
Bernardino is a name of Italian, Hispanic, or Portuguese origin, which can refer to:
Bernardino II da Polenta was lord of Ravenna, Italy from 1389 to 1400. He was the son of Guido III da Polenta, grandson of Bernardino I and a member of the da Polenta family. Bernardino's mother was Elisa d'Este, the daughter of Obizzo III d'Este of Ferrara, who gave him numerous children. In 1389, Bernardino and his brothers, Ostasio, Obizzo, Aldobrandino, Azzo and Pietro imprisoned their father and ruled Ravenna. The brothers died in quick succession; allegedly Bernardino was poisoned by his brother Obizzo.
The Traversari are a noble Italian family. The dynasty's history was mostly connected to Ravenna, which it ruled between the 12th and 13th centuries. St. Romuald was the son of Duke Sergio degli Onesti of Ravenna and of Traversara Traversari, daughter of Teodoro Traversari, son of Paolo I Traversari.
Ostasio II da Polenta was an Italian condottiero and lord of Ravenna.
Lamberto is an Italian male given name taken from the name Lambert. It may refer to:
Gurlino Tombesi or Gorlino of Ravenna was an Italian condottiero who fought for Ravenna and the Venetian Republic.
Desiderio Spreti (1414–1474) was an Italian historian of contemporary Ravenna.