 The businesswoman and gender equality advocate, who in 2005 became the first woman Australian Football League Commissioner, was sworn in as Australia's 28th Governor General since 1901. I, Samantha Joy Mostyn, do solemnly and sincerely affirm and declare that I will well and truly serve His Majesty King Charles III, his heirs and successors, according to law, in the office of the Governor General of the Commonwealth of Australia.