Venezuelan born Ilich Ramírez Sánchez also known as Carlos the Jackal has been found guilty for crimes that claimed the lives of 11 people almost 30 years ago.
He is already serving a life sentence for killing two police officers and an informant in Paris in 1975.
The new convictions relate to four deadly attacks carried out in the 1980s.
The crimes include a 1982 car bombing in the French capital which killed one person and wounded dozens more outside the office of the El Watan Al Arabi newspaper.
Three separate attacks on trains, two of which took place on New Year’s Eve 1983, resulted in the deaths of another 10 people.
The 62-year-old has been sentenced to a minimum of 18 years after lawyers argued that the self styled revolutionary fighter was a danger to the public.