President Donald Trump is bringing his children, and their spouses, to meet with the Royal family when he makes his state visit to the United Kingdom next month, despite only one of the couples holding officially positions with the administration.

Trump and his family are expected to be greeted by the royal family during their June visit to Europe, sources told ABC News. The trip is centered around commemorating the 75th anniversary of D-Day.

Details of the three-day trip to the U.K. are still being finalized, but the young Trumps – including eldest daughter and senior adviser Ivanka Trump and her husband, who is also a senior adviser, Jared Kushner – could meet the young royals.

Prince William and his wife Kate are expected to attend a banquet dinner hosted by Queen Elizabeth II on June 3, which all of Trump's children are expected to attend, a White House official said.

President Donald Trump is expected to bring his adult children and their spouses to meet with the Royal family during a visit to the United Kingdom next month

It's a bit unprecedented for the president to bring his full family, when only one of his children, Ivanka, holds an officially position within the administration. She and her husband, Jared Kushner, are both senior advisers to Trump

The sources indicated that list could include Ivanka, Jared, Donald Trump Jr., Eric Trump, his wife Lara and Tiffany Trump.

The only Trump child missing would be Barron Trump, who is 13-years-old.

'President Donald J. Trump and First Lady Melania Trump accepted the invitation from Her Royal Majesty Queen Elizabeth II to visit the United Kingdom from June 3 to 5, 2019,' the White House said in a statement, without mentioning if other family members would attend.

'This state visit will reaffirm the steadfast and special relationship between the United States and the United Kingdom,' the statement continued.

A Buckingham Palace spokesman said they would not comment on the traveling delegation and that it was a matter for the White House.

The White House is still discussing a final schedule with Buckingham Palace.

Trump and first lady Melania had tea with Queen Elizabeth at Windsor Castle during his official visit to the U.K. last July.

Queen Elizabeth II (left) is hosting the Trump's for a banquet dinner on June 3, and Prince William (right) and his wife Kate (second from right) are expected to attend

Trump is making an official visit to France and England in June to commemorate the 75th anniversary of D-Day

During the trip, he will also make a stop in Ireland, where he will play golf at the Trump International Golf Links & Hotel Doonbeg, which is on the eastern coast of Ireland

It is expected that the Queen's heir Prince Charles and his wife Camilla will meet the president for the first time in inviting the Trumps for tea during this trip next month, the sources said.

Previously, Queen Elizabeth II has also hosted two other U.S. presidents – George W. Bush and first lady Laura Bush in November 2003 and President Barack Obama and first lady Michelle Obama in May 2011.

In addition to visiting France and England for his official trip, Trump has also scheduled a stop in Ireland to golf at Trump International Golf Links & Hotel Doonbeg Ireland.

While there, Trump will also meet with Irish Prime Minister Leo Varadkar in Shannon, Ireland, which is just a few dozen mile trip by air to his resort on the eastern coast of the European country.

His stop for golf has drawn controversy as it's expected to rack in a seven-figure bill – especially considering the cost of accommodating the entourage that accompanies the president on his trips abroad.

Trump's golf trips to his clubs and resorts since taking office have cost taxpayers more than $100 million.