The Zamtsa Serti incarnation line was initiated when the Second Zamtsa Sertri, Lobzang Jigme Namkha was identified as the reincarnation of Fifty-fifth Ganden Tripa, Trichen Ngawang Namkha Zangpo in the eighteenth century. The seat of this tulku line is at Labrang Tashikyil, an important Geluk monastery in Amdo.