Norwich MP Chloe Smith's 4-year-old baby Alastair made history by becoming a part of Brexit history after he was allowed inside the House of Commons.
Smith had interrupted her maternity leave to vote on triggering Britain's divorce from the EU.
Alastair became the first infant of a Conservative MP to be taken into the House of Commons chamber.
House of Commons Speaker John Bercow had his hands full during the 17 hours of debate on legislation to pave the way the UK's exit from the European Union.
But he did not flinch as Smith brought her four-month-old baby to the Commons to support the Government in a vote on the European Union (Notification Of Withdrawal) Bill, Eastern Daily Press reported.
It was on 24 June, when Britain had voted in favour of withdrawing its membership from the European Union following which the then Prime Minister David Cameron announced his imminent resignation.
Britain yesterday moved one step closer to a final separation from the EU as members of the UK parliament voted overwhelmingly in favour of allowing the government to begin Brexit negotiations.
Smith, 34, said last week she would be travelling from her Norwich North constituency to vote on "the central issue of our times".
And when she arrived in the chamber with her son Alastair, they got a warm welcome from Bercow.
"I say to the honourable lady, don't be sheepish about it," the Speaker said.
"The little baby is welcome to come in. There's no problem," he said.
The Norwich North MP took her four-month-old through the voting lobby, where she also met Prime Minister Theresa May.
Smith and her husband Sandy McFadzean's son Alastair Hugh was born last September.
"Whichever way you look at it, this was a bit of history and it'll be a privilege to be able to tell our son he was there," Smith was quoted as saying.
She was told he was one of the first babies ever in the Chamber by Speaker John Bercow, who gave her permission to bring in the infant.
--With PTI inputs