Phyllis Dalton, The Oscar-winning costume designer of such classics as Lawrence of Arabia and Doctor Zhivago, has sadly passed away, according to The Hollywood Reporter. She was 99.

In a career that spanned 50+ years, Dalton worked on dozens of films, many of them period films, ranging from Arabia and Zhivago to the musical Oliver!, to The Princess Bride, to both Laurence Olivier’s 1944 and Kenneth Branagh’s 1989 versions of Henry V.

Born in Chiswick, England on October 16, 1925, Dalton was captivated with drawing clothing and learning about historical fabrics and styles from a young age, eventually studying costume design at Ealing Art College.

Gaining attention after her aunt entered her into a Vogue talent contest, Dalton became an assistant to designer Yvonne Caffin, and, eventually received her first credit on a feature film, as wardrobe supervisor on the 1950 courtroom drama, Eye Witness.

Working her way up the ranks, including assisting legendary designer Edith Head for Alfred Hitchcock’s 1956 remake of The Man Who Knew Too Much, Dalton received her first costume designer credit on the swashbuckler Rob Roy: The Highland Rogue.

Dalton’s historical eye for detail stood out, in particular, in her collaborations with David Lean. She took direct inspiration from photographs in the London Imperial War Museum of the titular Lawrence of Arabia and created over 5,000 costumes over 15 months for Dr. Zhivago. 

Dalton was also a veteran of World War II, enlisting in the Women’s Royal Naval Service and serving at the code-breaking facility at Bletchley Park.

She is survived by her second husband, Christopher.