Alongside Gordon Brown in Westminster Abbey were former prime ministers Sir John Major and Baroness Thatcher.
Sir John Major introduced PFI in 1992 to allow private companies to finance, build and run public sector projects.
His wife, Baroness Hogg, sits as a crossbencher in the Lords having been made a life peer by former Tory Prime Minister Sir John Major.
Unlike Miss Greening, Mr McLoughlin - who was a transport minister under Lady Thatcher and Sir John Major - is said to have "no baggage" over Heathrow expansion.
BBC: Cabinet reshuffle: Lansley replaced by Hunt in health job
And although it is not binding on Mr Cameron, it has sparked comparisons with Sir John Major's Conservative government which was torn apart by splits on Europe in the 1990s.
Other guests include Kate Middleton's former headmaster, William's Eton housemaster and Sir John Major, the former British prime minister who was appointed guardian of Prince William after his mother's death.
CNN: Who's going to the royal wedding? Check out the guest list!
Former prime minister Sir John Major has said that parliamentary reform is badly needed to restore trust in politics and has heavily criticised the decision to go to war in Iraq.
Sir Alan also quit and under John Major, the new chancellor, the UK joined the ERM in October 1990.
As for the British ambassador, the soft-spoken Sir Stephen Wall, he is close to John Major--but for the past two years this has often seemed something of a disadvantage.
John Major had publicly expressed his hope that Sir Gordon's report would be published speedily.
Sir Richard Evans, the boss of British Aerospace, this month attacked John Major for failing to restrain his party's Eurosceptics.
Sir Gus has been a trusted official for three decades, prospering under every prime minister from John Major on.
He and Labour have accumulated too many mistakes and behaved too distastefully, some think, like John Major's cabinet in the mid-1990s (though it was the personality of Sir John's complacent party rather than his own that was the main problem then).
应用推荐