Andrei Zhuk and Vasily Yuzepchuk were sentenced to death in 2009 for separate crimes but had been sharing a death row cell in Minsk.
Adnan Hajizade and Emin Milli have been sentenced to two and two and a half years respectively after they posted a video critical of the government on YouTube.
An Italian court has confirmed the convictions of 15 police officers, prison guards and doctors who were found guilty of the ill-treatment of detainees in the Bolzaneto facility in 2001.
Vadim Karastelev, who has been campaigning for police reform and against corruption, was severely beaten by two men outside his home in Novorossisk.
At a Council of Europe meeting last week, member states voiced support for proposals that individuals should pay to file an application with the Court.
Max Goeldi, who began serving a four month prison sentence this week, is thought to be a pawn in a diplomatic row between the two countries.
Tunisian nationals Adel Ben Mabrouk and Riadh Nasseri are suspected of having committed terrorism-related crimes in Italy prior to being held at the US detention centre.