The former head of the German arm of the Kurdistan Workers' Party (PKK) has been sentenced to three years and nine months in prison by the Dusseldorf High Regional Court.
The PKK platform is based on revolutionary socialism
Hueseyin A. was found guilty of being the ring leader of the PKK in Germany - which is considered a terrorist organization in the European Union - from mid 2007 until April last year.
The Kurdish Turk had been living in Germany under the alias Hueseyin Colak, the court said.
Federal prosecutors in the three-month case had been seeking a four-year term for the 48-year-old.
Hueseyin A. was also found to have threatened to kill a 21-year-old Kurd unless she aborted a child fathered by a Stuttgart PKK official.
He was arrested in the western German city of Detmold in July last year. The PKK has been outlawed in Germany as a criminal gang because of its violence against renegade former members.
Editor: Neil King