The biggest royal wedding of the year is about to take place, here's what you need to know

This biggest royal wedding of the year is set to take place next month.

Princess Maria Laura of Belgium, 33, will marry her British investment banker fiancé William Isvy on September 10.

The soon-to-be newlyweds will follow royal tradition and tie the knot at the Cathedral of St. Michael and St. Gudula in Brussels, with the entire Belgian royal family expected to be in attendance.

READ MORE: Woman receives unwelcome mid-flight messages from fellow traveller

Speaking to the Dutch paper Nieuwsblad, the couple said, "We are really delighted and eager to begin this new chapter in our life together."

As Maria is ninth in line to the throne, she had to seek permission to marry from her royal uncle, King Philippe, who approved of the union.

Isvy proposed to Princess Maria in December 2021 with a beautiful diamond and sapphire engagement ring.

In a statement to Instagram, the Belgian Royal Palace congratulated the happy couple: "Princess Maria Laura and Mr William Isvy have become engaged. The wedding will take place in the second half of 2022."

READ MORE: Moment mum knew her daughter's 'ear infections' were more serious

"Congratulations to the future bride and groom!"

The newly-engaged royal is the daughter of Princess Astrid, King Albert's eldest daughter, and her husband Prince Lorenz.

Astrid is the younger sister of the current monarch, Phillippe of Belgium.

Princess Maria is the granddaughter of Albert II of Belgium, who abdicated in 2013 due to health issues.

The princess' fiancé William was born in Paris to a British mother and a French-Moroccan father and grew up in London.

Princess Maria was raised away from the royal spotlight and grew up in Bazel, Switzerland where her father worked as a banker.

READ MORE: Johnny Depp makes surprise career move

The couple met in London in 2015 and have lived there together for the last few years.

The last wedding in the Belgian royal family took place in 2014 between Princess Maria's older brother Prince Amedeo and Elisabetta Maria Rosboch von Wolkenstein in her hometown of Rome.