Question: Koahou was a Hawaiian high chief  was a counselor to a ruler who passed away in which year ?

full_context: Document 1: Lunalilo: Lunalilo, born William Charles Lunalilo (January 31, 1835 – February 3, 1874), was King of the Hawaiʻi from January 8, 1873 until February 3, 1874. Due to his popularity and status as Hawaii's first elected monarch, he became known as "The People's King".
Document 2: Kekāuluohi: Miriam Auhea Kalani Kui Kawakiu o Kekāuluohi Kealiʻiuhiwaihanau o Kalani Makahonua Ahilapalapa Kai Wikapu o Kaleilei a Kalakua also known as Kaʻ ahumanu III (July 27, 1794 – June 7, 1845), was Kuhina Nui of the Kingdom of Hawaii, a queen consort of both King Kamehameha I and Kamehameha II, and mother of another king.
Document 3: Kohala, Hawaii: Kohala is the name of the northwest portion of the island of Hawaiʻ i in the Hawaiian Archipelago. In ancient Hawaii it was often ruled by an independent High Chief called the "Aliʻ i Nui". In modern times it is divided into two districts of Hawaii County: North Kohala and South Kohala. Locals commonly use the name Kohala to refer to the census-designated places of Halaʻ ula, Hāwī, and Kapaʻ au collectively. The dry western shore is commonly known as the Kohala Coast, which has golf courses and seaside resorts.
Document 4: Koahou: Koahou (died 1826) was a Hawaiian high chief who succeeded his father Kamanawa as one of the chief counselors of Kamehameha I.
Document 5: Joshua Kaeo: Joshua Kaʻ eo (c. 1808 – June 27, 1858), was a Hawaiian high chief or nobleman of Hawaii Island descent, the uncle of Queen Emma of Hawaii, and an early Hawaiian politician and advisor of Kamehameha III.
Document 6: List of monarchs of Hawaii: Kamehameha I established the Kingdom of Hawaii in 1795 after conquering most of the Hawaiian archipelago. In 1810, Kaumualii became a vassal of Kamehameha I, who therefore emerged as the sole sovereign of the island chain of Hawaiʻ i. His dynasty lasted until 1872, and Kingdom of Hawaii lasted until 1893, when Queen Liliuokalani, of the Kalākaua Dynasty, was deposed by a pro-United States led overthrow of the Kingdom of Hawaii. On November 23, 1993, the Congress passed , also known as the "Apology Resolution", acknowledging the American role in the overthrow of the Hawaiian monarchy. President Bill Clinton signed the joint resolution the same day.
Document 7: Hoolulu: Hoʻolulu (1794–1844) was a member of the nobility during the formation of the Kingdom of Hawaii. He was a trusted advisor to King Kamehameha I, also known as "Kamehameha the Great", and was one of the select few to know his secret resting place. His descendants continue the tradition of guarding royal burials. A major cultural site in Hilo, Hawaii is named after him.
Document 8: Kamehameha IV: Kamehameha IV, born Alexander ʻIolani Liholiho (1834–1863), reigned as the fourth monarch of Hawaii under the title: "Ke Aliʻi o ko Hawaiʻi Pae ʻAina" of the Kingdom of Hawaii from January 11, 1855 to November 30, 1863. His full Hawaiian name was Alekanetero ʻIolani Kalanikualiholiho Maka o ʻIouli Kūnuiākea o Kūkāʻilimoku.
Document 9: Kamehameha Day: Kamehameha Day on June 11 is a public holiday in the state of Hawaii in the United States. It honors Kamehameha the Great, the monarch who first established the unified Kingdom of Hawaiʻ i—comprising the Hawaiian Islands of Niʻ ihau, Kauaʻ i, Oʻ ahu, Molokaʻ i, Lānaʻ i, Kahoʻ olawe, Maui, and Hawaiʻ i. In 1883 a statue of King Kamehameha was dedicated in Honolulu by King David Kalākaua (this was a duplicate, because the original statue was temporarily lost at sea, recovered and is now located in North Kohala, island of Hawai`i.). There are duplicates of this statue in Emancipation Hall at the Capitol Visitor Center in Washington, D.C. and in Hilo, island of Hawai`i.
Document 10: Kameʻeiamoku: Kameʻ eiamoku (died 1802) was a Hawaiian high chief and the Counselor of State to King Kamehameha I. He was called Kamehameha's uncle, but he was really the cousin of Kamehameha's mother, Kekuiapoiwa II.
Document 11: Hoapili: Ulumāheihei Hoapili (c. 1775 – January 3, 1840) was a member of the nobility during the formation of the Kingdom of Hawaii. He was a trusted military and political advisor to King Kamehameha I, known as "Kamehameha the Great". Although trusted with one of the last symbolic rites of the Hawaiian religion, he later became a supporter of Christian missionaries.
Document 12: Kohala District Courthouse: The Kohala District Courthouse is a historic courthouse located in Kapaau on the island of Hawaii. The courthouse was built in 1889 to serve as a district court for the Kingdom of Hawaii; it continued to serve as a courthouse through U.S. annexation and Hawaii's eventual statehood, only closing in 1975. It was designed in the style of a traditional Hawaiian plantation house, which is reflected in its wide lanai, single-walled exterior, and corrugated metal roof; the ornamentation on its lanai sets it apart from other local buildings. A statue of Kamehameha I, who was born in Kohala, stands in front of the building.
Document 13: Elizabeth Kekaaniau: Elizabeth Kekaʻaniau Laʻanui Pratt, full name Elizabeth Kekaikuihala Kekaʻaniauokalani Kalaninuiohilaukapu Laʻanui Pratt (12 September 1834 – 20 December 1928) was a great grandniece of Kamehameha I, being a great granddaughter of Kalokuokamaile, the older brother of Kamehameha I, founder of the Kingdom of Hawaii.
Document 14: Kamehameha I: Kamehameha I (] ;  1736?  – May 8 or 14, 1819 ), also known as Kamehameha the Great, (full Hawaiian name: Kalani Paiʻ ea Wohi o Kaleikini Kealiʻ ikui Kamehameha o ʻ Iolani i Kaiwikapu kauʻ i Ka Liholiho Kūnuiākea) was the founder and first ruler of the Kingdom of Hawaii. A statue of him was given to the National Statuary Hall Collection in Washington, D.C. by the state of Hawaii as one of two statues it is entitled to give.
Document 15: Kamehameha I: Kamehameha I (] ;  1736?  – May 8 or 14, 1819 ), also known as Kamehameha the Great, (full Hawaiian name: Kalani Paiʻ ea Wohi o Kaleikini Kealiʻ ikui Kamehameha o ʻ Iolani i Kaiwikapu kauʻ i Ka Liholiho Kūnuiākea) was the founder and first ruler of the Kingdom of Hawaii. A statue of him was given to the National Statuary Hall Collection in Washington, D.C. by the state of Hawaii as one of two statues it is entitled to give.
ground_truth: 1819