Kalaniopuu and Keouanui were of the same blood father but of different birthrights.  Kalani was of higher I-Kanaka (Hilo, Kau) and Keoua of lower Kalanikauleleiaiwi (Kohala).  Kam was son of Keouanui and Keouakuahuula son of Kalani.  The highest royalty is Kam's greatgrandmother's other great-grandchild Kekumanomoanokekapu, the pi'o kapu loa daughter and wife of the Oahu high chief and ruling mo'i of Maui.  Yes, Kam's royal ranking was both checkered and low.