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

Context paragraphs:
Koahou: Koahou (died 1826) was a Hawaiian high chief who succeeded his father Kamanawa as one of the chief counselors of Kamehameha I.

Umi-a-Liloa: ʻUmi-a-Līloa (fifteenth century) was a ruling ali'i-ai-moku (district high chief of Hawai'i) who inherited religious authority of Hawai'i from his father, High Chief Liloa, whose line is traced, unbroken to Hawaiian "creation".  His mother was Akahi.  She was of a lesser line of chiefs who Liloa had fallen in love with when he discovered her bathing in a river.  He became Chief after the death of his half-brother Hākau, who inherited the lands of his father to rule.  Umi-a-Liloa was considered a just ruler, religious and the first to unite almost all of the Big Island.  The legend of Umi is one of the most popular hero sagas in Hawaiian history.  While there is probably embellishment to the story, as many sagas do, a portion of historic accuracy remains.

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.

Open information extraction: In natural language processing, open information extraction (OIE) is the task of generating a structured, machine-readable representation of the information in text, usually in the form of triples or n-ary propositions.  A proposition can be understood as truth-bearer, a textual expression of a potential fact (e.g., "Dante wrote the Divine Comedy"), represented in an amenable structure for computers [e.g., ("Dante", "wrote", "Divine Comedy")].  An OIE extraction normally consists of a relation and a set of arguments.  For instance, ("Dante", "passed away in" "Ravenna") is a proposition formed by the relation "passed away in" and the arguments "Dante" and "Ravenna".  The first argument is usually referred as the subject while the second is considered to be the object.

Kumalae: Kumalae was a Hawaiian High Chief, "Aliʻi Nui" (ruler) of Hilo.  He is also known as Kumalae-nui-a-ʻUmi ("Kumalae the Great, son of ʻUmi").

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.

James Kaliokalani: James Kaliokalani, also referred to as Kali; (May 29, 1835 – April 2/21, 1852) was a Hawaiian high chief of the Kingdom of Hawaii.  At a young age, he was chosen to attend the Chiefs' Children's School (later renamed Royal School).  He was taught by the American missionary Amos Starr Cooke and his wife, Juliette Montague Cooke, alongside his siblings and thirteen of their royal cousins, who were declared eligible to succeed to the Hawaiian throne.  He died in 1852, shortly after leaving the school and working as a court interpreter.

Mulielealiʻi: Mulielealiʻi (Hawaiian pronunciation: "MUH-LEEH-EH-LEH-ALEEH") was an ancient Hawaiian High Chief who lived on the island of Oahu, and is mentioned in ancient chants and writings by Abraham Fornander.  His title is "Aliʻi Nui".

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.

Lakona of Oahu: Lakona-a-Nawele (Hawaiian for: "Lakona, son of Nawele"; Hawaiian pronunciation: "Lah-koh-nah") was an ancient Hawaiian High Chief of the island of Oahu.  He was born c. 1340 on Oʻahu, Hawaii.

Supporting paragraphs: Koahou Kamehameha I
Answer: 1819