BABY BOOM: Feting the launch of new mother-and-child scents for her burgeoning CdeC brand, Cordelia de Castellane and cousin Segolene Gallienne gathered with friends for a sweet treat at Paris tearoom Angelina Tuesday night. The scents, dubbed “Very important baby and (Mummy),” and “Brume de Doudou,” (Comfort Mist) mix bergamot with a hint of musk. Prices start from 34 euros, or $50 at current exchange rates, for 50ml or 44 euros, or $60, for 100ml. “We are already working on the summer fragrance which will feature Fleur d’Oranger,” said de Castellane, who is also working on a line of jewelry for children with hip Parisian jeweler Benedikt von Lepel. “We are about to open our 12th store – in London,” said Gallienne, daughter of Belgian financier Albert Frere, adding that she was also in the midst of preparing for the next Christian Dior meeting where she is on the board. “It is a great challenge and great to be able to put forward a feminine point of view,” she said.