(updates previous). Rome, April 10 - Italian police on Wednesday seized assets worth some 10 million euros from a former boss in the Magliana Gang that ruled Rome's criminal underground in the 1970s and '80s. Ex-Magliana Gang chieftain Ernesto Diotallevi was also implicated, but acquitted, in the case of Roberto Calvi, the Italian banker found hanging under London's Blackfriars Bridge in 1982 in mysterious circumstances. Italian prosecutors have claimed he was murdered after failing to pay back the Mafia, but no convictions have been made. Diotallevi was arrested last July with 10 others, including a priest, on suspicion of fraud and money laundering. He has since been indicted on those charges. The unnamed priest is thought to have been behind a bank transfer to an anonymous account opened by the Institute for Works of Religion - commonly known as the Vatican Bank - at a Rome branch of Italy's biggest bank Unicredit. Calvi worked closely with the Vatican Bank, earning the nickname 'God's Banker'. Diotallevi, Sardinian wheeler-dealer Flavio Carboni and ex-Mafia financial wizard Pippo Calo' were acquitted in an appeals trial over the Calvi murder in May 2010 but prosecutors appealed to the supreme Court of Cassation. The Magliana gang was the most feared criminal organization in Rome from the mid 70s to the mid 1980s, not just for the robberies and murders it committed but also for its links with the Mafia, freemasonry and right-wing extremists.