The Newton baronetcy, of London, was created in the Baronetage of England on 25 January 1661 for Robert Newton. The title became extinct on his death in 1670.
He was a citizen of London and married Elizabeth (died 1661), daughter of Francis Longston (or Langstone) of London and Shropshire. He died without leaving a male heir in 1670.
Newton baronets, of London (1661) Sir Robert Newton, 1st Baronet (died 1670).
Extended family Newton had a daughter Elizabeth (died 1693), who married Sir John Baker, 3rd Baronet, who died in 1661, and then in 1668 Sir Philip Howard. There was a son of the marriage, Philip Howard (1669–1711), but according to the History of Parliament "Howard's marriage to a wealthy widow proved unfortunate. She tricked him over her jointure, and they separated."
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