Wang Dayuan
Piracy in the region was mentioned in Chinese texts, for example, the 14th century traveller Wang Dayuan described pirates from Long Ya Men (in present-day Singapore) and Lambri (in Northern Sumatra) in his work "Daoyi Zhilüe". The pirates of Long Ya Men were said to leave Chinese junks going west through the strait undisturbed, but waited until the Chinese junks were on their way back to China laden with goods before they attacked with two to three hundred boats.