The battle for control of the late Hugh Green's $400m empire is set to resume today, when a four-day hearing begins in the Court of Appeal.
Green, who died aged 80 in 2012, built up his businesess over decades after migrating from Ireland in the 1950s.
It included the Hugh Green Group, a family-owned property company, and the Hugh Green Foundation, a charitable organisation that supports causes such as medical research or individuals living with disabilities or serious illness.
The philanthropist's eldest daughter, Maryanne, had been chief executive of the Green Group but she left the business in the 12 months before her father died.
Hugh Green's final will dated April 2012 - signed months before he passed away - added two of his five children, John and Frances Green, and lawyer Michael Fisher as executors. This small change had a big impact as the executors can appoint people to the trusts that control the entire Green Group.