Isabelle Mortgat (b.1985) [younger of two daughters of Princesse Anne-Isabelle de Ligne (b.1954) {herself daughter of Princess Alix of Luxemburg (1929-2019) & her husband Antoine, Prince de Ligne (1925-2005)} & her first husband Olivier Mortgat (b.1956)]
& her husband Gautier Walckiers had their first child, Gaston, this year.
Source:
Descendants of Duke Wilhelm of Nassau
And two more descendants of King Charles II of England and Scotland were born:
Louisa Mary Mulraney [nee Kershaw, born 1992], wife of Edward George Mulraney [born 1991], gave birth to a daughter, Ottilie, 31 July, 2020.
Louisa Mulraney, descended from the Merrie Monarch King Charles II, is a daughter of Martin John Kershaw [born 1954], of Brokenborough, Wilts, descended from the Earls of Lindsey & Abingdon, by his wife the former Joanna Lucy FitzRoy [born 1957], scion of the Dukes of Grafton, daughter of Lord Edward Anthony Charles FitzRoy [1928-2007].
Edward Mulraney is a son of Kevin Mulraney, of Oaksey, Wilts, by his wife the former Frances J. Grange.
Rebecca Kershaw [nee Watkins], wife of Captain Simon Edward Kershaw [born 1985], a descendant of King Charles II, gave birth to a third daughter, Zara, 14 June, 2020, a sister for Olivia and Philippa.
Rebecca Kershaw is a daughter of Mr David Watkins, of Ballingham, Herefordshire, and Mrs Nicky Scudamore, of Much Marcle, Herefordshire.
Captain Kershaw, is the eldest son of Martin John Kershaw [born 1954], descended from the Bertie Earls of Lindsey & Abingdon, by his wife the former Joanna Lucy FitzRoy [born 1957], scion of the Dukes of Grafton, daughter of Lord Edward Anthony Charles FitzRoy [1928-2007], a younger son of the 10th Duke of Grafton, &c.
The 1st Duke of Grafton was an illegitimate son of King Charles II and Barbara Villiers, Duchess of Cleveland.
Source for both: Peerage News site.