Alexei Navalny, 47, the loudest critic of the Russian President Vladimir Putin and his regime, died in jail, the Russian Federal Penitentiary Serviceannounced on Friday.

Despite having spent 540 days in jail, expecting to spend thousands more in his cell, having Russian authorities ban his Anti-Corruption Foundation (FBK) for being a “foreign agent” and an “extremist” organization, Alexei Navalny continues to fight against the Kremlin and is going international.