Te Rata was invested with the kingship on 24 November 1912, about two weeks after his father's death. As was the custom for a new Māori King, he assumed the title name of Pōtatau Te Wherowhero, beginning a kingship dogged by ill health and controversy.[1]
Korokī became Te Rata's successor upon his death. Of his other sons, Taipu had died in 1924, and Hori was not recognised at the insistence of Te Puea Herangi, Te Rata's influential cousin.
As a child, Te Rata had been a chronic invalid and had suffered several illnesses including rheumatoid arthritis and heart disease. The former greatly affected his ability to carry out his role as King.[citation needed] This was particularly apparent during an expedition to England in 1914. This expedition had been undertaken with the aim of presenting British officials with a petition concerning breaches of the Treaty of Waitangi; namely, that Māori land had been unjustly confiscated following the New Zealand wars.[citation needed]
However, during his voyage to England, Te Rata ended up suffering repeated attacks of rheumatics. For example, during a stop-over in Honolulu, he was unable to accept an invitation from the nation's ageing Queen Liliʻuokalani, the last ruler of her people prior to annexation. Furthermore, these attacks continued following his arrival in England on 21 May 1914. Indeed, Te Rata was so unwell that he ended up turning down a meeting with important British officials, although he eventually was able to meet with King George and Queen Mary.[citation needed]
^ abcdBallara, Angela (1 September 2010). "Te Rata Mahuta Potatau Te Wherowhero". Dictionary of New Zealand Biography. Ministry for Culture and Heritage. Retrieved 13 May 2012.
^Soszynski, Henry. "Maori kingitanga". World of royalty. Retrieved 13 May 2012.