Prince Harry's Chelsea Flower Show garden is 'brave', says Prince Michael of Kent A baby girl for the daughter of a much-missed actor Sir Donald Sinden, who celebrates his 90th birthday in October, has received an early present from his granddaughter, Kezia - a 6 lbs 13 oz baby girl. "How thrilling to actually be around to be able to see and hold my first great-grandchild," a delighted Sir Donald tells Mandrake. The birth is a special one for the celebrated acting dynasty as Kezia is the daughter of Sir Donald's late son Jeremy, who immortalised "Boy" Mulcaster in the television series Brideshead Revisited, who succumbed to cancer at the age of 45 in 1996. Kezia, 33, who works as exhibitions manager at Sotheby's, and her husband, Alex Hanson, 32, who works in the City, have decided to call their first child Isobel Florence. "Grandfather is coming along soon to be introduced to Isobel," Kezia tells me from her hospital bed. We're all so thrilled. Kezia announced her marriage in 2010 within weeks of her sister, Harriet, an interior and exterior designer, who accepted the proposal of Paul Davies, an accountant. They all assured me at the time they hadn't co-ordinated it. Kezia's marriage the following year was attended by a number of the friends that her father had made from Brideshead Revisited, including Anthony Andrews. Georgina Simpson, Andrews's wife, is Kezia's godmother. I well remember Jeremy, who was a highly accomplished actor, but, off-stage, modest and unassuming. After his cancer was diagnosed, he continued to work in a production of Wind in the Willows at the Old Vic until a month of his death. He took his illness, as he did most things in life, such as bad notices, in his stride. Of a particularly nasty review he once received, he observed: "While the critic caused me a somewhat uneasy breakfast, I contented myself with the knowledge that I had given him a perfectly ghastly evening." Break a leg Nacho Figueras appears to be having a bad week. After losing to Prince Harry's team at the Sentebale Royal Salute Polo Cup in America, the acclaimed polo player has broken his leg. The 36-year-old Ralph Lauren model was supposed to captain the Argentine team at Wednesday's Gaucho Polo but is now wheelchair- bound after suffering a fall over the weekend. Happily, his close friend Andrea Vianini was able to lead the team to victory in his absence. "It's so sad, he is like a brother to me," Vianini tells me at the Cheval des Andes box. There is always a risk, I just hope he will be back playing again soon. Laura hopes for the Wright mark Laura Wright may have sung for the Queen seven times in the last year, but the 22-year-old soprano tells me she has now performed for her most nerve-wracking audience for the last time. "I had my last practical singing test last week and I finish completely in three days," the Royal College of Music student tells me of her studies, at an Arthritis Research UK event. Wright modestly says she is just hoping to pass. Graduation is not for a few months so hopefully they'll tell me before that if I fail.