Joseph Zen Ze-kiun is far from a typical Catholic bishop. He started his involvement with politics - and tussles with authorities - in 1999 when he led the church to fight for the welfare of mainlanders seeking residence in Hong Kong. During the Article 23 security legislation saga, he was branded a 'pathological saint' by the pro-Beijing camp over his strong stance against the bill. His position in the pro-democracy campaign in Hong Kong took root in the July 1 march in 2003, and he is believed to be the spiritual and moral force behind the democrats' campaign to fight for universal suffrage. He was once banned from the mainland for years due to his often harsh comments on its human rights record. Born to a middle-class Catholic family in Shanghai in 1932, he became bishop of Hong Kong in September 2002.