Newspaper headlines: EU migrant benefits and 'brave' MP Ellwood speaks
At the start of the week that will see Article 50 triggered by Theresa May, the EU figures prominently on a number of front pages.
The Sunday Times reports that the Department for Exiting the European Union will recommend to the cabinet that EU migrants who receive child benefit for children living in their own country should continue to do so after Brexit.
The paper predicts that such a decision is likely to cause a row as it contradicts pledges made in the Conservative election manifesto.
The Sunday Express front page heralds EU laws "heading for the dustbin", with Mrs May set to publish a white paper on the Great Repeal Bill which will set out how Parliament will convert thousands of EU directives into UK legislation.
However, the Sunday Telegraph thinks the prime minister could be walking into a row over her plans to use 500-year-old powers known as Henry VIII clauses to make some changes without parliamentary scrutiny.
The powers date back to 1539 when they were used to allow Henry VIII to legislate by proclamation.
The Telegraph's leader column says "love it or loathe it, Brexit is happening". It says Europe has only itself to blame, and Britain might have voted to remain if only the EU had offered David Cameron more than "trifling opt-outs" when he tried to renegotiate Britain's relationship with the bloc.
The Observer, meanwhile, has harsh words for what it calls the "hard Tory Brexit" that it believes is in prospect, describing it as an "epic act of self harm".
The Observer also reports on the security implications of Wednesday's attack on Westminster. It says what happened has thrown plans for the 10-year long restoration and overhaul of the parliamentary estate into confusion.
The former reviewer of terrorism legislation, Lord Carlile, tells the paper that officials should think again about the current proposal to house MPs in other buildings around Whitehall while the refurbishment is under way.
"I'm not the hero... he is" is the front page lead of the Sunday Express, which quotes foreign office minister Tobias Ellwood.
He is speaking for the first time since pictures emerged of him trying to save the life of PC Keith Palmer in the grounds of the Houses of Parliament.
Many other papers also carry the statement from Mr Ellwood who said he was heartbroken that he could not do more for PC Palmer.
The Star's front page claims the man who carried out the attack, Khalid Masood, was a "benefits cheat", while the Sunday People uses a picture of Masood to illustrate a story claiming that 70 jihadis are about to be freed from British jails.
Prince's 'near miss'
"William's helicopter split second from lethal drone crash" is the headline on the front of the Mail on Sunday.
It says Prince William's air ambulance had a close shave with a drone over north London last year, reportedly coming with 100ft (30m) of the device while flying at an altitude of nearly 2,000ft.
However, the paper adds that the prince was not actually on board.
The Sunday Times says the BBC is planning to treat listeners to the calming joys of "slow radio".
A four-hour programme on the sounds of the countryside will be broadcast on Radio Three at the end of May.
It will follow a ramble through the south-east Wales countryside, allowing listeners to hear the crunch of walking boots, the splash of streams and descriptions of the landscape.
Finally, the Sun reveals the surprising news that Benidorm is bidding to join the Pyramids of Giza and the Taj Mahal as a world heritage site.
The Spanish resort, long beloved by sun-seeking Brits, has applied to Unesco for official recognition. The Mayor Antonio Perez says the resort is unique in terms of its natural beauty and that it is a model of a sustainable city.