Prince Harry and Meghan Markle are all set to tie-the-knot on May 19, 2018. The royal wedding will take place at Windsor Castle and the excitement around it is palpable.

However, there is one person who is irked about the forthcoming wedding and it is none other than Meghan’s estranged brother, Thomas Markle Jr.

In a letter shared with a popular American magazine, Thomas warns Prince Harry against marrying the Suits actor calling it the “biggest mistake in royal wedding history.”

He wrote, “As more time passes to your royal wedding, it became very clear that this is the biggest mistake in royal wedding history.”

Thomas went on to criticise Markle and said that the little fame she achieved through her series has gone in her head. He seems to be irked with the fact that former actor did not invite her family for the upcoming wedding. “Who does that?” he asked.

He added, “It’s very apparent that her tiny bit of Hollywood fame has gone to her head, changing her into a jaded, shallow, conceited woman that will make a joke of you and the royal family heritage.”

Meghan’s estranged brother concluded the letter blaming Markel for keeping their family “torn apart”. However, maintained that she is still his sister.

In the meantime, Kensington Palace on Twitter recently confirmed that Duke of Cambridge and Harry’s brother Prince William will be his Best Man at the wedding.

Kensington Palace tweeted, “Prince Harry served as best man to The Duke of Cambridge at his wedding to Miss Catherine Middleton in 2011.

The Duke of Cambridge is honoured to have been asked and is very much looking forward to supporting his brother at St George’s Chapel, Windsor on May 19th. Prince Harry has asked his brother The Duke of Cambridge to be his Best Man at his wedding to Ms Meghan Markle.”