Marino Filangieri (died 6 July 1251) was an Italo-Norman nobleman who served as the archbishop of Bari in the Kingdom of Sicily from 21 December 1226 until his death.
Marino was one of Frederick’s ambassadors, along with archbishop Lando of Reggio, sent to negotiate with Gregory, but the pope refused to lift the excommunication.
Along with Lando of Reggio, Thomas of Capua, Hermann of Salza, and other ambassadors, Marino helped negotiate the Treaty of San Germano to end the war in 1230.
[5] Marino’s brothers Richard and Lothair represented Frederick as imperial baillis in Tyre, but they were expelled by the nobles of the Kingdom of Jerusalem in 1242.
Frederick imprisoned Richard and Lothair upon their return to Italy, and Marino helped negotiate their release along with Raymond VII, Count of Toulouse.