Western Australia has proclaimed the new Monarch, King Charles III, in a special meeting at Government House.
Premier Mark McGowan and Governor Chris Dawson signed the proclamation, which will be gazetted into law.
The Premier said he believed the new king would 'model the same qualities of leadership' shown by his mother, Queen Elizabeth II.
"I have every confidence he will fulfil his duty to our state, Australia and the Commonwealth with dignity and valour in the years ahead," he said.
"It is the late Queen's stoicism and moralism that have fuelled the remarkable response from the public, as evidenced in the public tributes being paid to her."
Flags across the state have been flown at half-mast since the announcement of the Queen's death, but will be flown at full mast following the proclamation until sunset.
They will then return to half-mast until the day after the Queen's funeral.
Mr McGowan said most West Australians had never known a monarch other than the Queen.
"Now, with King Charles III, we have someone who is very familiar with Australia, and with Western Australia," he said.
The Premier said he suspected the new King would visit as soon as next year.
"I would have thought by next year he would probably come to Australia, and if he comes to Western Australia, that would be terrific," he said.
King Charles III has visited WA on six occasions in 1977, 1979, 1983, 1994, 2005 and 2015.
The 2015 visit was his first with wife Camilla, the Duchess of Cornwall, as she was known at the time.
Corgi owners unite to pay tribute to Queen
As the proclamation took place, Perth corgi owners gathered at Ozone Reserve in East Perth to honour Queen Elizabeth II.
Her Majesty had a lifelong fondness of corgis, having owned more than 30 since childhood.
"It's very sad news she's passed, but we wanted today to be a celebration of her life," said Perth corgi group organiser Hannah Werdschinski.
"One of the great loves of her life, along with her horses, has been her dogs — her corgis and her dorgis."
Ms Werdschinski said while the group did have royal enthusiasts, which may have contributed to the breed's popularity over the years, the corgis had simply "worked their way into our hearts".
"They're incredibly loyal, they're very intelligent, and they all have their individual, very big characters," she said.
"You can't look at corgis playing together without smiling."
Many of the attendees said they weren't royalists but wanted to join the event to soak up the sun and celebrate the Queen's iconic pets.
"We've got a corgi, so we thought we'd come and have some fun," owner Carrie said.
Gary and Bethany came to the commemorative meet-up with their dog Lady.
"God bless the Queen, she's done an amazing, fantastic job over all those years," Gary said.
"A lot of respect for Her Royal Highness, a fantastic person."
