Prince Amedeo and Princess Elisabetta of Belgium welcome third child

Prince Amedeo and Princess Elisabetta of Belgium have welcomed their third child, daughter Alix, sharing the happy news on X/Twitter.

"Prince Amedeo and Princess Elisabetta are delighted to announce the birth of their daughter Alix, born on Saturday September 2 in Brussels," their post, which has been translated into English, read.

"Alix weighs 3.4 kg and is doing well, just like her mother. The families of the happy parents join in this great happiness."

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The couple are already parents to Anna-Astrid, seven, and Maximilian, three.

Prince Amedeo is the eldest son of Princess Astrid and the first grandchild of former King Albert and Queen Paola of Belgium.

He is sixth in line to the throne. Alix is ninth in the line of succession.

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Little Alix won't be styled as Princess. Instead, she will hold the title Archduchess Alix of Austria-Este.

Prince Amedeo and Princess Elisabetta were married in 2014 in a spectacular wedding attended by royals from around the world.

Princess Elisabetta, a former Italian journalist, and Prince Amedeo, began dating in 2007.

King Philippe, 62 and Queen Mathilde, 50, are the current rulers of Belgium and their daughter, Princess Elisabeth, 21, is set to one day take the throne.

Elisabeth will be the first woman to rule the country in her own right, as previous queens of Belgium were always consorts, the wife of the king.

The rules were changed prior to her birth, allowing the eldest child of King Philippe and Queen Mathilde to inherit the throne, regardless of their gender.

Princess Elisabetta recently completed the country's military training.