Sydney, Sept. 8 -- An Australian woman who fatally poisoned three members of her family with mushrooms will spend at least 33 years in prison after being handed a life sentence on Monday.

Justice Christopher Beale in the Supreme Court of the state of Victoria on Monday sentenced 50-year-old Erin Patterson to life imprisonment with a non-parole period of 33 years for the 2023 murders of three people, and attempted murder of a fourth.

A jury in July found that Patterson had deliberately served a lunch containing toxic death cap mushrooms to the four guests at her home in the town of Leongatha, 115 km southeast of Melbourne, on July 29, 2023.

The 70-year-old parents of her estranged husband, Don and Gail Patterson, and his aunt, 66-year-old...