Mr Assange’s fiancee Stella Moris visited him on Wednesday in Belmarsh Prison, in south-east London, where he is being held while the United States continues legal moves to extradite him.
The couple have previously accused the prison governor and Justice Secretary Dominic Raab of working to prevent the ceremony going ahead.
Ms Moris told the media she hoped there would be no further ‘interference’ in their wedding plans.
South African-born lawyer Stella Morris (right) and Assange (left) began dating in 2015 after she helped work on a legal bid to halt his extraditions
Gabriel, four, and his brother Max, two, were conceived while Assange was hiding out in the Ecuadorian embassy in London
She said: ‘Today Julian and I are finally registering our intention to marry here inside Belmarsh prison. We were originally booked to do so three weeks ago.
‘Of course, the circumstances are not ideal but I am relieved that reason has prevailed and I hope there will be no further interference with our marriage.
‘In the UK everyone who is old enough, no matter who they are or where they are from, has a basic human right to get married to whom they choose.
‘This right is written into law. Julian is not charged with any crime in this country, he is not serving a sentence, his imprisonment serves no purpose at all other than to prolong and make his suffering worse.
‘I hope the injustice of this situation is swiftly brought to an end so that we can enjoy marriage outside of the walls of Belmarsh when he is freed.’
The couple have been engaged for several years and have been trying to get married despite the legal action.
They have two children, sons Gabriel, four, and Max, two.
The Wikileaks founder is fighting extradition to the US from Belmarsh Prison where he has been held since 2019
Assange is pictured peeking out of the Ecuadorian Embassy in London in a photograph from 2016
Mr Assange has been held in Belmarsh Prison since 2019 after he was carried out of the Ecuadorian embassy by police before being arrested for breaching his bail conditions.
He had entered the building in 2012 to avoid extradition to Sweden to face sex offence allegations, which he has always denied and were eventually dropped.
Mr Assange is wanted in the US on allegations of a conspiracy to obtain and disclose national defence information following WikiLeaks’s publication of hundreds of thousands of leaked documents relating to the Afghanistan and Iraq wars.
Source: Daily Mail UK