The US president, Donald Trump, will be the guest of honour at a sumptuous dinner at the Palace of Versailles, as the French left criticises Emmanuel Macron for going too far in attempts to flatter him.

“Versailles is not gold leaf, Versailles is the real deal,” said Trump of the opulent 2,300-room palace which was once home to France’s Sun King, Louis XIV. “I’m a fan of beautiful places.”

Macron’s office said the dinner on Wednesday night would mark the 250th anniversary of the independence of the US, in which France had played an important role by supporting the American revolution. The Palace of Versailles was chosen as a venue because it is “a historic symbol of Franco-American friendship”, an Élysée official said.

The French president, under pressure to show he was not fawning over Trump, said it was not a “gala dinner” but instead simply a moment to mark France’s role in American independence. Macron said: “I’m pragmatic. It’s by firm and respectful discussion that one gets results.”

The dinner at France’s most spectacular palace – the seat of the French monarchy and a symbol of the French Revolution of 1789 – was seen by French politicians as a way to dangle a carrot for Trump to stay the full length of the G7 summit in Évian-les-Bains and not leave early as he did last year in Canada. “I’m the boss,” said Trump to fellow G7 leaders, including Macron, as the final day of the summit began.

Before dinner on Wednesday, Trump will be shown around the palace’s temporary exhibition on the history of French-US relations. He will also tour the Hall of Mirrors, the famed 17th-century gallery built under Louis XIV to project the power and majesty of the French monarchy.