Bianca Mosca

In 1946, Mosca opened her own couture house; this had financial backing from George Child Villiers, 9th Earl of Jersey, who would marry Mosca's niece Bianca Mottironi the following year.^[16] In early 1949, a review of her collection in the Australian press highlighted "semi-eveningwear"—sleeveless, floor length gowns in organza or brocade with full underskirts and coats designed on similar principles.^[17] At this stage, Mosca's notable clients included the Duchess of Kent.^[18] One of her co-designers was Walter Meggison, who went on to a successful career as a fashion designer in his native Australia in the 1950s.^[19]

Mosca continued to work to promote British fashion. She and Victor Stiebel—who succeeded her at Jacqmar—showed a series of suits in London in 1949 using British woollens and worsteds in a bid to attract overseas buyers.^[20] Mosca was closely involved with Sekers fabrics in Whitehaven, using its silks in her collections and working with some of its innovative fabrics.^[21] In 1949, she donated a dress to the collection of Doris Langley Moore, later to establish the Fashion Museum, Bath. The dress was permanently pleated and made of nylon fabric – as such, it became the first British couture dress in the collection to feature a synthetic silk.^[22] Mosca designed a showstopping black brocaded silk evening gown for Margot Fonteyn, worn by the prima ballerina at a reception in New York after her opening performance of Sleeping Beauty in 1949.^[23] Fonteyn was photographed by Cecil Beaton for British Vogue in this dress.^[24]

By December 1949 Mosca's eponymous label was failing and the receivers were called in—this during a post-war slump in sales of British couture, due to a dwindling home market and overseas buyers' preference for Paris fashions. Claude Crawford, Mosca's husband, told the newspaper reporting the story that the company intended to continue trading under the Bianca Mosca name and was still taking orders.^[18]

Having fallen ill with "a rare form of asthma" ^[4] in 1949, the same year that she underwent what was described as "a serious operation",^[25] Mosca died at Paris's Hôpital Necker^[2] in June 1950.^[18][26] Her obituary notice in The Sydney Morning Herald notes that she had recently opened an office in Paris to promote British fabrics in France.^[1] A short tribute in The Times noted: "Fashion was her métier, and she epitomized the chic that she dispensed".^[27] In October 1951, it was announced in The Yorkshire Post that a trust fund would be established by friends of Bianca Mosca in order to award a fashion design scholarship in her name.^[28] In 1954, the Council of the Royal Society of Arts took over the administration of the Bianca Mosca Memorial Trust, introducing two new bursaries for designers in the field of fashion, shoes, millinery or jewellery and announcing that the awards jury would include Edward Molyneux and Audrey Withers.^[29]