Original: He is the fourth person to be awarded the Nobel Peace Prize while in prison or detention, after Germany's Carl von Ossietzky (1935), the Soviet Union's Andrei Sakharov (1975), and Myanmar's Aung San Suu Kyi (1991).
Simplified: He is also the third person to win the Nobel Peace Prize while in prison or detention. The others were Germany's Carl von Ossietzky in 1935 and Myanmar's Aung San Suu Kyi in 1991.