"Simone Boccanegra (Italian: [siˈmoːne ˌbokkaˈneːɡra]; Ligurian: Scimon Boccaneigra [ʃiˈmuŋ ˌbukˑaˈnejɡɾa]; died 1363) was the first Doge of Genoa. He became doge in 1339, but was ousted from ...
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power six years later. He regained the position in 1356, retaining it until his death in 1363.
His story was popularized by Antonio García Gutiérrez´s 1843 play Simón Bocanegra and Giuseppe Verdi´s 1857 opera Simon Boccanegra. Note the spellings." - (en.wikipedia.org 02.11.2019)