Ottone was the son of Enrico I del Carretto and Beatrice Aleramici [1] . For the first time in written sources, Ottone del Carretto is mentioned in 1179 , when, together with his brother Enrico II, they made a covenant in front of their father to give Savona financial and judicial independence to the commune. In 1181, Ottone mediated negotiations between his relative Manfred II de Saluzzo and the Alba community. [2] As a result of this agreement, Manfred freed some of the merchants from Alba, whom he had previously held hostage . After the death of Enrico I, his lands were divided between his Ottone and Enrico II. The boundary between the possessions of the brothers was elected river Bormida . Ottone received the northeastern part of his father's possessions with cities and castles: Sessame , Bubbio , Cassinasco , Monastero Bormida , Ponti , Dego , Cairo Montenotte and Carretto [3] . Enrico II received the south-western part of his father’s possessions with cities and castles: Ozilla , Millezimo , Kamerna , Clavezana , Novello , Vado , Noli , Di Finale. On April 10, 1191, the inhabitants of Savona bought from Ottone for 1,500 lire the rest of the feudal property and rights that he had in Savona and in the adjacent territories. The independence of Savona was confirmed by a charter from Emperor Henry VI on November 18 of the same year. Subsequently, Ottone also transferred the feudal rights to his possessions in Lunj, in the commune of Asti and the Genoese Republic , in return for monetary compensation. In 1194, Ottone was elected Podesta Genoa. The Genoese under the leadership of Ottone joined the army of Boniface I , helping Emperor Henry VI in his conquest of Sicily . Henry VI promised Genoa a reward for his services to Syracuse and Val di Noto in Sicily, but he used as a pretext legal errors during the elections to Ottone so as not to give the promised territories. In 1204, Ottone and Enrico II joined the “Great Union” of William VI of Montferrat , the family of Del Vasto , the commune of Alba and the lord Astizio in the war against the communes of Asti and Cuneo . On July 6, 1209, Ottone reached an agreement with Asti. He handed over to the community all his possessions in the valley of the Po , including Castano , Cortemilia , Torre di Bormida and Torre Uzzon, for 1000 lire. In 1210, Ottone witnessed the granting of imperial privileges given to the commune of Asti by Emperor Otton IV during his stay there. After this, Ottone left for the imperial court in Turin . When the war broke out between Otto IV and Frederick II , Ottone and Asti took the side of Frederick II. In 1212, he was elected to Asti's poddesh. In 1225, between the Alliance of Genoa and Asti, on the one hand, and other communities of the Po Valley, on the other hand, war broke out. Otto and Enrico joined the Genoese army to defend Asti. When Frederick II arrived in Italy in 1227 , the communes of the Po Valley raised a revolt against Genoa, hoping for imperial help. Enrico joined the rebellion, and Ottone joined the Genoese army. Together with the army of the Genoese, he forced his brother to surrender. In about 1234, Emperor Frederick II appointed Ottone the imperial vicar [2] . The exact date of death Ottone is not known, it is known that he died before 1242 [1] .
