Mao Anqing, the last surviving son of Mao Zedong, the founder of China's communist government, was buried on Monday with state leaders among the thousands of mourners, state media reported.
Mao Anqing, 84, died Friday. No cause of death was given.
"Mourners, many dressed in military uniform, queued up quietly outside the memorial hall at the Babaoshan Revolutionary Cemetery in western Beijing to pay their last respects," Xinhua News Agency said.
Mao Anqing's wife Shao Hua and other close relatives were present, it said.
Mao Anqing, who had no role in government, suffered from psychiatric problems and is believed to have spent much of his adult life in mental hospitals.
Mao Anqing was born in 1923, the second son of Mao and his first wife, Yang Kaihui, while they were activists. Yang was executed in 1930 by the then-ruling Nationalist government.
In 1936, Mao Anqing and his older brother, Anying, were sent first to Paris and then to Moscow. They returned in 1947 before the communists' 1949 victory in a civil war that overthrew the Nationalists.
Mao Zedong also had two daughters, Li Na and Li Min. Some say Mao might have had other children while on the run from Nationalist forces in the 1930s and left them with peasant families. But none of those children has been found.
Mao Anying was killed fighting in the 1950-53 Korean War. Mao Zedong died in 1976.
Mao Anqing's son, Mao Xinyu, is the father of Mao Zedong's only great-grandchild.
The discovery of the submarine has unveiled a few "inconsistencies." For example, how can one explain the fact that the sub was found where it needed to be searched for from the start?
The TurkStream, which runs along the bottom of the Black Sea from Russia's Anapa to Turkey, will consist of two lines, each with a capacity of 15.75 billion cubic meters of gas a year