Alexis Clairaut

Alexis Claude Clairaut was a French mathematician, astronomer, and geophysicist. He was a prominent Newtonian whose work helped to establish the validity of the principles and results that Sir Isaac Newton had outlined in the Principia of 1687. Clairaut was one of the key figures in the expedition to Lapland that helped to confirm Newton's theory for the figure of the Earth. In that context, Clairaut worked out a mathematical result now known as "Clairaut's theorem". He also tackled the gravitational three-body problem, being the first to obtain a satisfactory result for the apsidal precession of the Moon's orbit. In mathematics he is also credited with Clairaut's equation and Clairaut's relation.
Letitia Forbes, Countess of Granard
Letitia Forbes, Countess of Granard, formerly Letitia Davys, was the wife of George Forbes, 4th Earl of Granard. She was the daughter of Arthur Davys of Hampstead, Dublin, by his wife the former Catherine Stewart, daughter of William Stewart, 1st
Sophia Marsham, Countess of Romney
Sophia Marsham, Countess of Romney, formerly Sophia Pitt, was the first wife of Charles Marsham, 2nd Earl of Romney
Charlotte Seymour, Duchess of Somerset
Charlotte Seymour, Duchess of Somerset, formerly Lady Charlotte Finch, was the second wife of Charles Seymour, 6th Duke of Somerset. Lady Charlotte was the first of twenty-one 'ladies of quality and distinction' who signed Thomas Coram's first petition
Katherine Wellesley-Pole, Countess of Mornington
Katherine Wellesley-Pole, Countess of Mornington, formerly Katherine Elizabeth Forbes, was the wife of William Wellesley-Pole, 3rd Earl of Mornington
Maria Beauclerk, Duchess of St Albans
Maria Janetta Beauclerk, Duchess of St Albans, formerly Maria Janetta Nelthorpe, was the second wife of William Beauclerk, 8th Duke of St Albans, and the mother of the 9th Duke
Mary Seymour, Duchess of Somerset
Mary Seymour, Duchess of Somerset, formerly Mary Webb, was the wife of Edward Seymour, 8th Duke of Somerset, and the mother of both the 9th and 10th dukes
Frances Percy, Duchess of Northumberland
Frances Julia Percy, Duchess of Northumberland, formerly Frances Julia Burrell, was the second wife of Hugh Percy, 2nd Duke of Northumberland, and the mother of the 3rd and 4th Dukes
Mary Forbes, Countess of Granard
Mary Forbes, Countess of Granard, formerly the Hon. Mary Stewart, was the wife of George Forbes, 3rd Earl of Granard. She was born in Ireland, the daughter of William Stewart, 1st Viscount Mountjoy, and his wife, the former Mary Coote
Olivia Bennet, Countess of Tankerville
Olivia Bennet, Countess of Tankerville, formerly Lady Olivia Montagu, was the wife of Charles Bennet, 6th Earl of Tankerville
Andrei Simonov
Andrei Dmitrievich Simonov was a Russian Armed Forces major general serving as Chief of the Electronic Warfare Troops of the 2nd Army of the Western Military District