She suffered from chronic back pain and depression and was found dead in her vehicle by police alongside a note asking not to be resuscitated.
Graham Morant will be eligible for parole in October 2023.
A husband who persuaded his wife to kill herself so he could claim her life insurance has been jailed for 10 years.
The 56-year-old woman was found dead alongside a petrol generator in her vehicle on 30 November, 2014.
While people have been convicted before of helping someone take their life, usually in mercy killings, Justice Davis said no one had been convicted in Australia before of persuading someone who would not otherwise have taken his or her own life to kill themselves.
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However, there has been no statement from President Sirisena or Prime Minister Rajapakse since then. Most of the 22 remaining MPs, including the TNA, are likely to oppose Rajapakse, observers said .
Graham Morant, 68, was convicted last month of encouraging Jennifer Morant's suicide in 2014.
The 69-year-old on Friday became the first person in Australia to be put behind bars for counselling someone to kill themself and help them to do it.
He ruled that he was motivated by money and wanted to collect 1.4 million Australian dollars (£880,000) from three life insurance policies.
Mr Morant claimed he had been acting through compassion when he talked her into killing herself.
CCTV footage emerged during the case of Morant purchasing items at a hardware store that his wife used to take her own life.
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"Slowly, very slowly, over the course of the next hour the accused explained he did assist his wife in her suicide".
Graham Morant was sentenced to 10 years in prison for counseling his wife to take her life, and six years for aiding in her death.
According to prosecutors, Morant had told his wife that he planned to use the insurance payout to build a religious commune in the Gold Coast hinterland.
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The port is a key entry point for food and humanitarian aid, but the coalition says the Houthis also use it to import weapons. According to the United Nations , at least 10,000 people have been killed since the coalition entered the conflict.