The Nangya Jeong clan (Korean: 낭야 정씨; Hanja: 瑯琊 鄭氏) is a Korean clan.
Their Bon-gwan is in Langya, Shandong, China, known as Nangya (Korean: 낭야) in Korean.
Their founder was Jeong Seon-gap [ja] who was from Langya, Shandong.
He was a Jinshi (imperial examination) (進士) at the end of Ming dynasty.
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