Lady Tamara Grosvenor (b.1979) [oldest of four children of Nathalia Ayesha Phillips (b.1959) {herself youngest of five children of Georgina Wernher (1919-2011) {{herself daughter of Countess Anastasia de Torby (1892-1977) & her husband, Sir Harold Werher, Baronet (1893-1973)}} & her first husband, Harold Phillips (1909-1980)} & her husband, Sir Gerald Grosvenor, Duke of Westminster (b.1951)]
& her husband Edward Van Cutsem (b.1973) had their second son, Louis Hugh Lupus, on 17 April, at Countess of Chester Hospital, England.
His brother, Jake Louis Hannibal turned three 22 days ago.
Little Louis is his maternal grandparents' third grandchild; their second daughter, Edwina (b.1981) & her husband, Daniel Robert Snow (b.1978) have a daughter, Zia, who will turn eight months tomorrow.
Sources:
Second baby for Lady Tamara and Edward van Cutsem - Chester Chronicle (Thanks, Lij!)
Descendants of Duke Wilhelm of Nassau
Dominic Albert Charles Churchill (b.15 December 1979) [son of Lord Charles Churchill (b.1940) & his current wife Elizabeth, nee Wyndham (b.1948)
& his wife Gillian, nee Troughton had their first child, Martha Melissa, this year.
Source:
http://www.angelfire.com/realm/gotha/gotha/marlborough.html
Princess Elisabeth-Eleonore de Ligne, who will turn 29 in exactly two weeks [youngest of three children of Prince Wauthier de Ligne (b.1952) & his wife Regine, nee Countess de Renesse (b.1955)]
& her husband, Baron Baudoin Gilles de Pelichy (b. 26 November 1982) had their fourth child, Marguerite, this year.
A sister for Antoine (b.2006), Charles (b.2008) & Philippine (b.2010).
The little one is her maternal grandparents' fifth grandchild; their son Phillippe (b.1977) & his wife Laetitia, nee Rolin (b.1981) have a son Jean-Charles, who celebrated his second birthday dwo days ago.
Source:
http://www.angelfire.com/in/heinbruins/Nassau.html