I haven't seen any messages on this man, so am entering the information in hopes that it will help someone.
From the book "Virginia Gleanings in England" - Abstracts of 17th and 18th century English Wills and Administrations Relating to Virginia and Virginians" by Lothrop Withington; 1980:
"Thomas Blagrave of Westminster, gent.Will 14 May 1686. proved 4 December 1688.To my wife Margaret Blagrave, my house and land in Teddington, County Middlesex.To my kinsman Thomas Blagrave, 40 pounds.To my kinsman Ambrose Searls, 10 pounds.To my kinswoman Anne Williams, in Virginia, 5 pounds.To my kinsman Henry Johnson, 5 pounds.To my kinsman John Blagrave, my brother Anthony Blagrave's youngest sonne, 5 pounds.To the poor which shall be near at my interment, 20s.All the rest to my beloved wife Margaret Blagrave, whom I make executrix.Witnesses:John Clayton, Elias Silvester, Tho. Jennings.Exton, 106."
"(There have, apparently, been several families of Blagrave, or Blagrove, in Virginia.A Henry Blagrave, was a Justice of Lunenburg county, prior to the Revolution, and Rev. Benjamin Blagrove, son of John, of Oxford, England, pleb. matriculated at st. Mary Hall, Oxtord, Oct. 15, 1764, at the age of 18, came to Virginia in 1772 -Foster's 'Alumini Oxonienses,' and Fothergill's'Emigrent Ministers'). He became Minister of Southwark Parish, Surry; took the American side during the Revolution, and was a member of the Surry Committee of Safety in 1776.John Blagrave, son of Anthony Blagrave of Berks, Arm., who matriculated at Magdalen College, Feb. 1, 1731-2, aged 19, may have been the nephew John, named in the will.)"