Takna Jigme Zangpo
Takna Jigme Sangpo (born 1927) is the longest-serving political prisoner of Tibetan ethnicity, having spent 37 years in a prison near Lhasa. First imprisoned in 1965, he was released from prison on a medical parole on 31 March 2002 having reached the age of 76. He resided in the Drapchi Prison.
He was first sentenced to three years of "re-education through labour" in 1965 because, as a schoolteacher (became a teacher in 1952), he had "corrupted the minds of children with reactionary ideas" (in fact, he taught Tibetan history, culture and language, then forbidden in Tibet). He served a further ten-year sentence from 1970 as punishment for "political activities".
In 1983 he received a 15-year sentence and five years deprivation of civil and political rights for "spreading and inciting counter-revolutionary propaganda" after he had been seen pasting a personally written wall poster at the gates of the Jokhang temple in Lhasa on 12 July 1983. That sentence was increased by five years after he shouted "reactionary slogans" in Drapchi on 1 December 1988.
On 6 December 1991, he was reportedly beaten, held in solitary confinement for six weeks, and his sentence extended by eight years for shouting "Free Tibet" during a visit to Drapchi prison by the Swiss ambassador to China.
Even while imprisoned, he continued to protest for a free Tibet, for which he was given additional prison sentences of many years. Despite his advanced age and years in prison, he continued to encourage his fellow Tibetans in their struggle for freedom. An April 2002 report described him as "one of the most determined and intransigent political prisoners in Drapchi . . . highly respected by other political prisoners".
Takna Jigme Sangpo was released on 31 March 2002, and was authorized to go to Washington on 13 July 2002. In August 2002, he settled in Switzerland as a political refuge. He was invited to speak at the UN Council on 6 June 2008.
Takna Jigme Sanpo is listed in the US Congressional Executive Commission On China Political Prisoner Database (PPD). 
Gu Chu Sum Movement of Tibet, an ex-political prisoners organisation, in McLeod Ganj published his biography on 24 January 2014. 
- "Takna Jigme Sangpo addresses the media in Dharamshala," The Office of Tibet
- "Interview of Takna Jigme Sangpo", on Human Rights Tribune
- Longest serving Tibetan political prisoner Jigme Sangpo released (TIN)
- "News" International Campaign for Tibet
- Herzog, W. (Producer/Director). (2003). Wheel of Time [Motion picture]. Germany: Werner Herzog Filmproduktion
- En Chine, les hommes d'affaire peuvent jouer un rôle important
- Un réfugié tibétain devant le Conseil des Droits de l'Homme de l'ONU
- CECC Record Number: 2004-00300
- Biography of Takna Jigme Sangpo released