It is understood that Prime Minister David Cameron is hosting a dinner at 10 Downing Street this evening for international guests due to attend Thatcher's funeral tomorrow.
The gathering included Canadian Prime Minister Stephen Harper, former US Vice President Dick Cheney and former US Secretary of State James Baker.
Downing Street has released a detailed Order of Service for Baroness Thatcher's funeral on Wednesday.
The full details of Baroness Thatcher's funeral have been released by Downing Street.
Baroness Thatcher's daughter Carol has spoken publicly to thank everyone who sent messages of sympathy and support.