Isabella Orsini

The couple's first child, Princess Althea Isabelle Sophie de Ligne de la Trémoïlle, was born on 12 May 2010 at the private "Villa Mafalda" clinic in Rome. On 9 May 2014, the couple had their second child, Princess Athénaïs Allegra Isabella de Ligne de la Trémoïlle at the American Hospital of Paris. On 10 January 2019, Orsini gave birth to the couple's third child, Prince Antoine Tau Édouard Adrien de Ligne de la Trémoïlle in Paris, France.

Orsini married in a civil ceremony on 2 September 2009 and in a religious ceremony on 5 September 2009, to Prince Édouard Lamoral Rodolphe de Ligne de La Trémoïlle (born 1976), at Antoing Castle in the Hainaut province of Belgium.

Princess Isabella de Ligne de La Trémoïlle (née Orsini; 2 December 1974) is an Italian actress. By marriage, she is a member of the House of Ligne, a Belgian noble family.

As Belgium is a monarchy which confers and recognises hereditary titles of nobility, the right of Orsini and her Ligne la Trémoïlle children to the prefix of prince/ss and to the style of Highness is legal—not a courtesy title; all members of the House of Ligne have been entitled to princely rank and to the Altesse in Belgium since 31 May 1923.