Lady Constance Mary Butler (26 March 1879 – 20 April 1949) was an Anglo-Irish noblewoman, yachtswoman and antiquarian.
Constance's older sister Beatrice married Sir Reginald Pole-Carew, an officer in the British Army.
"[2] She was also considered a beauty among the noblewomen of her generation,[4] and what she wore (on dressier occasions than yachting) was reported in detail on society pages.
"[6] During World War I she managed a Red Cross depot for medical and surgical supplies,[7] and collaborated with Bishop John Henry Bernard on translating, editing, and publishing the Charters of Duiske Abbey.
[8] Later in life, Lady Constance Butler remained interested in medical work, and became an expert on radiography, heading the x-ray department at St. Andrew's Hospital in London by 1924.