The Prime Minister has paid tribute to highly-regarded conservationist, businesswoman, philanthropist and arts patron Lady Diana Isaac, who died at home in Canterbury last night.
Lady Diana is best known for co-founding and running Isaac Construction with her now deceased husband Sir Neil Isaac.
She was also well regarded for the work she had done to help others, particularly as a champion for the arts and conservation up until her death, said Mr Key, who said his thoughts were with her friends and family.
"Lady Diana's contribution to Canterbury and New Zealand was truly remarkable.
"It is difficult to imagine anyone who was more generous or worked harder for the people of Canterbury," he said.