EU officials are reportedly terrified that Theresa May will trigger Article 50 on the anniversary.
Brussels bureaucrats have reportedly contacted Government ministers, pleading that Theresa May does not pick March 25 – the day the Treaty of Rome was signed – to kick start the Brexit process.
The agreement, signed on that date in 1957, kick started the European Economic Community, and is credited with being one of the foundations on which the European Union was built.
Italian diplomats are now preparing to celebrate “the most remarkable historical moments of the integration in the European history” – with some using the anniversary as a bid to “relaunch the European project”.
But gushing Eurocrats are trembling over the prospect that Brexit – seen by many as the first domino in the destruction of the crumbling bloc – could overshadow the event.
Mrs May has pledged to fire the Brexit starting gun by the end of March, with her choice of dates potentially restricted by possible parliamentary delays.
And some EU figures have reportedly become so frightened they have come knocking on the door of the British Government for reassurance.
A Government minister told the Sunday Telegraph: “Our colleagues on the Continent are concerned we might trigger it on that date.
“You could see what the temptation it, can’t you? But it might be a bit provocative.”
This comes as leading Brexiteers today warned Germany the country will pay a “high price” if Britain is punished with a bad trade deal after the Brexit process is complete.
Tory MP Owen Paterson and John Longworth, co-chair of “clean Brexit” campaign group Leave Means Leave, warned Berlin business leaders their economy will suffer the consequences if it relies on “cack-handed” Brussels negotiators to safeguard Germany’s future.
Mr Longworth told the conference: “Make no mistake – no deal is better than a bad deal with the EU, Britain will walk away from the table and revert back to WTO rules with ease.”
He added: “The voice of business must drown out that of the bitter politics of the EU project.”