The Burmese pro-democracy leader Aung San Suu Kyi is to address to a joint session of the Houses of Parliament on Thursday.
The Nobel peace laureate will deliver her speech in Westminster Hall - the most historic part of the Palace of Westminster - a rare honour, normally only accorded to heads of state.
The pomp and ceremony of her appearance before MPs and peers follows her emotional return yesterday to Oxford - the city where she studied in the 1960s and where she settled with her late husband, the Tibetan scholar Michael Aris, in the 1980s.
Ms Suu Kyi, who has been widely feted during her tour of Europe, will also meet the Prince of Wales and the Duchess of Cornwall at Clarence House and hold talks with David Cameron in Downing Street.
She had previously met the Prime Minister in April when he became the first western leader to visit Burma following the decision by the country's military leaders to allow her and her party to stand in parliamentary elections.
On that occasion Ms Suu Kyi responded to his offer to visit Britain with a cautious "Perhaps". She had not left Burma in 24 years fearing that she would not be allowed to return if she did.
Since that visit, Mr Cameron has championed the suspension of international sanctions against Burma arguing that after years of isolation new President Thein Sein is genuinely committed to reform.
However in the Commons yesterday, Foreign Secretary William Hague - who will hold his own talks with Ms Suu Kyi - cautioned that there was "still a long way to go" to bring democracy to Burma and end ethnic conflicts.
He said that while the president was "absolutely sincere", there were elements within the Burmese government who were "not so enthusiastic" about the reform agenda.
"We will keep up the pressure as well as the welcome for these changes," he told MPs.
Ms Suu Kyi will also meet Labour leader Ed Miliband.
Downing Street said Mr Cameron had invited President Thein Sein to visit Britain.
"He is due to visit the UK in the coming months to continue the discussions they began when the Prime Minister was in Burma in April," a No 10 spokeswoman said.
"Those discussions will centre on the need for further reform."