Isaac Henrique Sequeira (1738-1816) was a Portuguese Sephardic Jewish doctor.[1]
Sequeira was born in Lisbon,[2] and educated at Bordeaux and Leiden.[3]
Sequeira served as physician extraordinary to the Portuguese Embassy at the Court of St James's in London, and honorary physician extraordinary to the Portuguese prince regent.[3]
He was a licentiate of the Royal College of Physicians (LCP) and practised medicine in Mark Lane.[4]
Sequeira was painted in about 1775 by Thomas Gainsborough, one of his patients, and that oil painting now hangs in Madrid's Museo del Prado.[1][2]
Sequeira married Esther d'Aguilar (1739-1791), the daughter of Baron Diego Pereira d'Aguilar. In Jews and Medicine: An Epic Saga, Frank Heynick describes him as "wealthy and pompous".[3]
On 21 April 1814, his daughter Lydia died.[5]
His descendants include Jane Sequeira, a British doctor married to the financier Jonathan Ruffer, who collects Spanish old masters and Gainsborough paintings.[1][6]