The House of Keà Âua Nui (Hale O Keà Âua Nui), or simply House of Keà Âua, is the extended royal family of Ancient Hawaii from which the reigning family of Kamehameha I and Lunalilo were descended.
A younger branch of the reigning family of Keaweûëkekahialiûiokamoku (from the Big Island of Hawaii), the dynastic line was established by Keà Âua Kalanikupuapaikalaninui Ahilapalapa, who was the father of Kamehameha I. He was the only son of Keeaumoku the Great and High Chiefess Kamakaëmoku.
Keà Âua's paternal lineage derives from a branch of the royal family of Hawaii Island. His father, High Chief Keeaumoku-nui of Kohala and Kona, was the second son of Keaweûëkekahialiûiokamoku, King of Hawaii Island and his half-sister bride, Kalanikauleleiaiwi. He was known as a pio chief of the highest rank since both his mother and father were pure royal blood. He even outranked his elder brother Kalaninuiamamao, from whom descends the House of KalÃÂkaua and House of KawÃÂnanakoa. It was because of these two brothers, who contested for the succession to the kingship of the island of Hawaii after Keaweëkekahialiiokamoku's death, that the island was dissolved into a handful independent warring factions.
The ancestry of Keà Âua's mother, High Chiefess Kamakaûëmoku, daughter of Kua Nuuanu, Oahu district chief descended from the nobility of Hilo who were descendants of King Umi-a-Lëloa's youngest son Kumalae, ruler of Hilo. His mother was also mother of Kalanià Âpuu, by Kalaninuiamamao, making him half-brother of Kalanià Âpuu and uncle of KëwalaÃȈ Â. Kamakaimoku was also the half-sister of Heulu (through their mother Umiula-a-kaahumanu), the father of Keawe-a-Heulu, another ancestor of the House of KalÃÂkaua.
Kamehameha I of the House of Keà Âua Nui conquered the separate islands in 1795, uniting them under a single Kingdom of Hawaii. His direct descendants are called the House of Kamehameha. His siblings' houses were then also considered a part of the royal family.