ÃÂàng Trong (chữ Nôm: Ã¥ÂÂå², lit. "Inner Circuit"), also known as Nam Hà(, "South of the River"), was the region of Vietnam south of the Gianh River, under the lordship of the Nguyá» n clan, and later expanded through Vietnamese southward expansion. It was bordered to the north by ÃÂàng Ngoài, ruled by the LêâÂÂTrá»Ânh.
Throughout the 17th century and most of the 18th century, the Nguyá» n lords, though claiming loyalty to the Lê emperors in ThÃÂng Long (Hanoi), ruled ÃÂàng Trong as a de facto independent kingdom. Nguyá» n rulers titled themselves as Chúa (chữ Nôm: 主, lit. "Lord") instead of Vua (chữ Nôm: 𤤰, lit. "King") until Lord Nguyá» n Phúc Khoát officially claimed the title Và © Vðáng (chữ Nôm: æ¦çÂÂ, lit. "Martial King") in 1744.
The terms ÃÂàng Trong and ÃÂàng Ngoài originated in the 1620s and were first recorded in the Dictionarium Annamiticum Lusitanum et Latinum by Alexandre de Rhodes. Contemporary European sources referred to ÃÂàng Trong as Cochinchina and its variants. Other foreigners also referred to it as the Kingdom of Quảng Nam (chữ Hán: 廣åÂÂÃ¥ÂÂ, ) after the Quảng Nam Governorate where the important harbor Há»Âi An (Faifo) located, hence the Dutch term Quinam.