Sinibaldo I Ordelaffi
Sinibaldo I Ordelaffi (1336–1386), son of Francesco II Ordelaffi and the warrior Cia degli Ubaldini, was Ghibelline lord of Forlì. In January 1376 he exploited the city's revolt against papal rule to recover the seigniory.
In 1379 Pope Urban VI made him papal vicar of Forlì, Forlimpopoli and Castrocaro. In December 1385 his nephews Pino and Cecco imprisoned him in Ravaldino castle, where he died the next year, possibly poisoned.