Prince Hassan bin Talal
In April 2009 Gregorian joined Václav Havel, Prince Hassan bin Talal, Desmond Tutu, and Yōhei Sasakawa in calling on The People's Republic of China to rescind the decision to execute Tibetan activists involved in the 2008 Tibetan unrest and "provide them with an opportunity to be re-tried in a judicial process that is more in keeping with the international standards that China says that it adheres to."