Fīnau ʻUlukālala

At the end of the 18th century, due to the unpopularity of the then incumbent Tuʻi Kanokupolu, Tukuʻaho, who was a cruel and arbitrary person, Fīnau Feletoa (ʻUlukālala II) was able to extend his authority to Haʻapai as well, which made him the most powerful chief of whole Tonga at that time.

With a triumvirate comprising him, Tupouniua and Tupoutoʻa the act was done in April 1799 during the yearly ʻinasi (first-fruits offering) to the Tuʻi Tonga in Muʻa.

He was also infamous, however, for the punishment he inflicted on some of his enemies: they were tied to leaking canoes, which were then set adrift at sea, soon to sink with their victims.

When Mariner was being rescued by a European ship, Moengangongo begged to be allowed to go to England, despite his awareness of losing his status as a king, because he wished to learn how to read, write, and gain knowledge about the world.

When he died in March 1833 he ceded Vavaʻu to his rearcousin and son in law Tāufaʻāhau I, as it was clear by then who was the most powerful person in Tonga.

It was therefore still in Vavaʻu, in fact at Pouono, on 20 November 1839 that Tāufaʻāhau declared himself king of Tonga and ceded it then to the new Christian god.

Tupou Toutai Nafetalai Matekitonga was the name of Fīnau ʻUlukālala IV, the only son of his father, born in the same year (1833) that the latter died.

Siaosi fathered unmarried children and was later married to Amelia Tuna Kaimanu Vaea, they had one adopted daughter, Takukipulotu.

After the death of king Tāufaʻāhau Tupou IV and the accession of Siaosi Tupou V, ʻAhoʻeitu became the heir presumptive and had to give up, backdated to 11 September, the title in favour of his son, Siaosi Manumataongo ʻAlaivahamamaʻo ʻAhoʻeitu Konstantin Tukuʻaho, who was officially installed to it on 30 September 2006.