In 欧阳修's essay on the Pavilion of the Old Drunkard, the green peaks south-west of Chuzhou are 琅琊: 望之蔚然而深秀者,琅琊也, "the one that looks lush, deep and lovely is Langya". The mountain is now usually called 琅琊山.
usage
Older histories write the name 琅邪, with 邪 read yá. The 王 clan of Langya, Wang Xizhi's family, was one of the most powerful families of the Eastern Jin.