King Goodwill Zwelithini, the traditional leader of South Africa's Zulu nation, has died aged 72 after being hospitalised for more than a month, his family announced on Friday.
Zwelithini had health problems related to diabetes, according to local news reports.
Zwelithini, the eighth Zulu king, reigned for more than 50 years, making him the longest-serving Zulu monarch.
As the traditional leader of the Zulu nation, Zwelithini did not hold political office but had considerable influence over the country's estimated 12 million Zulus, the largest ethnic group of South Africa's 60 million people.
King Zwelithini was an outspoken critic of the government's planned land redistribution policy, which could affect large tracts of land belonging to the Zulu nation.
The Ingonyama Trust controlled by the king owns 29 per cent of the land of the KwaZulu-Natal province, about 28,000 square kilometers, or 10,811 square miles.