Premise: The New Zealand Maori Queen, Te Arikinui Dame Te Atairangikaahu died on Tuesday at 5.32 p.m. (NZST) following a long illness. She was 75 years old. The Maori Queen holds no constitutional function in New Zealand, but Dame Te Atairangikaahu was an avid supporter of cultural and sporting events; the 40th anniversary of her coronation was celebrated in May. She was awarded an Honorary Doctorate from Waikato University in 1973, and an Honorary Doctor of Laws from Victoria University in 1999. She was one of the first inductees of the Order of New Zealand when it was established in 1987.
Hypothesis: Dame Te Atairangikaahu  40th coronation was celebrated during the spring.