Datu Piang

Piang (1846–1933) was a Maguindanao leader, popularly known as Datu Piang and often referred to as the Grand Old Man of Cotabato.

A Moro mother and a Chinese father (陳名頓) were his parents. He was a mestizo. due to his Maguindanao and Chinese mixture. Datu Piang (sometimes referred to as Amai Mingka) was recognised as the undisputed Moro leader in Central Mindanao when the United States Army occupied and administered what was then referred to as "Moroland".

Datu Piang's son by his sixth wife, Polindao, was Datu Gumbay Piang, who led the Moro-Bolo Battalion to fight against the Japanese during their occupation of Mindanao in World War II.

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