Longkodo 's father Tong Guowei was in turn the son of Tong Tulai and maternal grandfather of the Kangxi Emperor through his mother Empress Xiaokangzhang .
Tong Tulai is a noble who belonged to the Han Eight Banners .
Longkodo 's father Tong Guowei was in turn the son of Tong Tulai , a noble who belonged to the Han Eight Banners , and maternal grandfather of the Kangxi Emperor through his mother Empress Xiaokangzhang .