Priscilla Victoria Hastings (née Bullock, 28 February 1920 - 12 August 2010) was a British racehorse owner and trainer. She was one of the first three women to be elected as a member of the Jockey Club in December 1977, alongside her half-sister Ruth Wood (née Primrose), Countess of Halifax and Helen Johnson Houghton.
Hastings was the daughter of Malcolm Bullock, who was a Conservative MP from 1923 to 1953 and became a baronet in 1954, and his wife Lady Victoria Bullock (née Stanley), the third child of Edward Stanley, 17th Earl of Derby. Her mother had previously married Neil Primrose, son of Archibald Primrose, 5th Earl of Rosebery, in 1915, but she was widowed in 1917, and had married Bullock in 1919. Lady Victoria Bullock was killed in an accident while hunting with the Quorn in November 1927, aged 35. Sir Malcolm Bullock died in 1966.
In 1947 she married Peter Hastings, son of Aubrey Hastings and grandson of Francis Hastings, 13th Earl of Huntingdon. Her father-in-law Aubrey Hastings trained four Grand National winners and had ridden the first - Ascetic's Silver - himself in 1906 (the horse had previously won the Irish Grand National in 1904). At the time of their marriage, Peter Hastings was an assistant racehorse trainer, and he began training at Kingsclere stables in 1953.
They had four children:
In 1954 Peter Hastings inherited the estate of his uncle, Sir William Bass and changed his surname to Hastings-Bass as required by his uncle's will. Their children also adopted the new surname but Priscilla Hastings kept her name unchanged. In 1953 they bought the 1,500 acres (610 ha) Kingsclere estate, near Newbury, Berkshire.