Mikhail Bakunin
He was eventually deported from France for speaking against Russia's oppression of Poland.  In 1849 he was arrested in Dresden for being involved in the Czech rebellion of 1848.  He was turned over to Russia where he was imprisoned in Peter-Paul Fortress in Saint Petersburg.  He remained there until 1857, when he was sent to a work camp in Siberia. He escaped to Japan, the U.S. and finally ended up in London for a short time, then Switzerland and Italy.