John Blagrave served as a Colonel in the Berkshire Militia, and as Justice of the Peace and Deputy Lieutenant in Berkshire. He married first in September of 1827 to Mary Anne, daughter of Henry Parsons, brother of Lord Rokeby. In 1841 he married secondly, to Georgiana, daughter of Sir William Rowley, 2nd Bt. of Tendring Hall. Blagrave was succeeded in his Calcot Park estate by his nephew, John Henry Blagrave.
Bibliography
1894
Burke, Sir Bernard (edited by his sons). History of the Landed Gentry of Great Britain and Ireland. 2 vols. 8th ed. London, 1894: 1: 161.