Mr Kennedy was Lib Dem leader from 1999 to 2006
MPs are to pay tribute to former Liberal Democrat leader Charles Kennedy, after his sudden death on Monday aged 55.
There will be a dedicated session in the House of Commons at 12:30 BST immediately after the first Prime Minister's Questions of the Parliament.
Mr Kennedy led the party for six years and took the Lib Dems to their best election result in 2005.
No cause of death has been given but police said it was not suspicious.
The tributes session will begin at about 12.30 BST, after the first Prime Minister's Questions of the new Parliament.
Speaker John Bercow said it would be an opportunity for MPs to "say what they think and feel and remember about our departed colleague".
Mr Kennedy, who lost his Ross, Skye and Lochaber seat in last month's general election, died at his home in Fort William on Monday. His family said they were "devastated" to lose "a fine man and a "loving father".
Tributes from across the political spectrum poured in after the news was announced.
David Cameron said politics had lost a man of "immense ability", while Nick Clegg said his opposition to the Iraq war had been "enormously courageous".
Under Mr Kennedy's leadership, the Lib Dems won a record 62 seats in 2005 but he resigned eight months after the election after revealing he had been receiving treatment for a long-standing drink problem.
Charles Kennedy: 1959-2015
By Nick Robinson, BBC political editor
Charles Kennedy left a mark on British politics. The man who took his party to its electoral peak, he was the only UK party leader to warn the country of the perils of invading Iraq when Labour and the Conservatives were uniting to support it.
He was also the only Liberal Democrat MP who could not bring himself to vote to form a coalition with the Conservatives.
But British politics also left its mark on him. Elected at the age of just 23, politics and the House of Commons became his life whilst alcohol was his friend, his prop and his curse.
Read Nick's thoughts
John Pienaar's memories
The Charles Kennedy story
Charles Kennedy's life in pictures
Charles Kennedy in his own words
Scottish tributes
Mr Clegg, who will step down as Lib Dem leader in July, said that on a good day Mr Kennedy had "more political talent in his little finger than the rest of us put together".
"He was one of the most gentle and unflappable politicians I have ever known, yet he was immensely courageous too - not least when he spoke for the country against the invasion of Iraq," he said.
The Lib Dems have opened an online "book of condolence" where anyone can leave messages via its website.
In a statement on Tuesday, Mr Kennedy's family said: "It is with great sadness, and an enormous sense of shock, that we announce the death of Charles Kennedy.
"We are obviously devastated at the loss. Charles was a fine man, a talented politician, and a loving father to his young son."
A Police Scotland spokesman said: "Police officers attended an address at Fort William on Monday, June 1 to reports of the sudden death of a 55-year-old man.
"Police were notified by ambulance service personnel. There are no suspicious circumstances."
Mr Kennedy's political career began in the Social Democratic Party and he became the youngest MP of the time when he won the Ross, Cromarty and Skye seat in 1983 at the age of 23.
He became SDP spokesman on social security, Scotland and health and continued to hold a series of frontbench posts when most of his party merged with the Liberals to form the Lib Dems in 1988.
The former Lib Dem leader appeared as a regular guest on satirical news programme Have I Got News for You
The birth of his son in 2005 was seen as a sign the hard-partying Kennedy was transforming into a family man
He took over the Liberal Democrat leadership from Paddy - now Lord - Ashdown in 1999.
His 2002 marriage to Camelot public relations executive Sarah Gurling - and the later birth of his son in 2005 - was seen by many in the party as a sign he was settling down. He and his wife split up in 2010.
After his resignation, Mr Kennedy maintained a lower profile. He did not play any role in the coalition government, having voted against his party's decision to enter an alliance with the Conservatives.
Prime Minister David Cameron said Mr Kennedy was "a talented politician who died too young", while acting Labour leader Harriet Harman said he "brought courage, wit and humour to everything he did".
Tony Blair, who clashed with Mr Kennedy over the former Labour PM's decision to take the UK to war in Iraq, said his death was "an absolute tragedy".
He said he had the greatest of respect for Mr Kennedy who entered Parliament at the same time as him, in 1983, describing him as "a lovely, genuine and deeply committed public servant".
Scotland's First Minister Nicola Sturgeon said Mr Kennedy was "an incredibly talented, gifted, effective politician", while Lib Dem peer Baroness Williams said he had "huge charisma" and was "deeply loved in the party".
Mr Kennedy passed away at his cottage in the Highlands
"He was completely beyond the standard of what we rather regard as greatness in politics. He could have been a very great man indeed," Lady Williams told the BBC.
Reflecting on Mr Kennedy's battle with alcohol, ex-Lib Dem MP Sir Malcolm Bruce said the party did not handle his exit as leader well, telling the BBC there were times when "we hoped he was coping with it but he wasn't always".
And Alastair Campbell, the former adviser to Tony Blair who has tackled his own problems with alcohol, said the two men - who became close friends - faced a "shared enemy".
"Alcoholism is a disease and people should reflect on that," he told BBC Radio 5 live.
The Right Honorable Charles Kennedy, pictured in 2009
, British former  who once led the Liberal Democrats, has died at age 55. He was found dead on Monday at his home in , Scotland by his partner, Carole Macdonald.

Kennedy was a Member of Parliament for 32 years, losing his seat in the  to the Scottish National Party just under a month ago. He led the Liberal Democrats from 1999 until his resignation in 2006.

Kennedy first became a Member of Parliament in 1983 at age 23, becoming the youngest MP at the time. He was elected to represent the  constituency under the  (SDP). Through this he helped the party eventually merge with the  to form the Liberal Democrats in 1988. He took over leadership of the party in 1999, replacing .

During his time as party leader he won praise from critics for his opposition to the invasion of Iraq, which was being pushed through by then British Prime Minister Tony Blair. In the 2005 general election he saw his party record their highest ever electoral result, winning 62 seats. However his success wouldn't last, with Kennedy resigning the following year after going public with his alcohol abuse problem. 

Tributes have come from politicians across a number of political parties. The first edition of Prime Minister's Questions since the general election took place in the  yesterday and many offered their condolences to Kennedy's family.  Current Prime Minister David Cameron said "Charles Kennedy played a pivotal role in bringing together two parties — the SDP and the Liberals. As leader he took the Liberal Democrats to the best electoral result for a third party in British politics for nearly 100 years."

Nick Clegg, the outgoing leader of the Liberal Democrats, said Kennedy "would have wanted to be remembered as a kind and loving father, brother and son first; and an accomplished politician second". 

 of the House  said to the House, "Charles Kennedy spent almost his entire adult life as an MP. He was assuredly at home in this place, yet perhaps happiest beyond it. He was a man of deep progressive principle, but a man also blessed with the popular touch. He was a good talker but an even better listener. Above all, and perhaps most strikingly, Charles had the rare ability to reach out to millions of people of all political persuasions and of none across the country who were untouched by and in many cases actively hostile to politics. In this seminal sense, therefore, Charles was the boy next door of British public life — we salute him. We honour his memory and we send today our sincere heartfelt and deepest condolences to his family and his friends."

The SNP's , who defeated Kennedy in the general election, said "So sorry to hear the dreadful news that Charles Kennedy had passed away. A man of such great ability, such a tragedy he has passed away. RIP."

The Liberal Democrats have set up an online condolence book on their website where anyone can post tributes and memories of the former MP. 

Kennedy is survived by his partner Carole and 10 year-old son Donald, who he had with his ex-wife, Sarah Gurling. The couple married in 2002 but split in 2010. His mother died in 2013 and his father, Ian, died at the age of 88 in April of this year.


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