(Encyclopedia) Mortimer, Edmund de, 5th earl of March and 3d earl of Ulster, 1391–1425, English nobleman, son of Roger de Mortimer, 4th earl of March. He succeeded (1398) his father not only as earl…
(Encyclopedia) Douglas, William, 1st earl of Douglas and Mar, 1327?–1384, Scottish nobleman; nephew of Sir James de Douglas, lord of Douglas. About 1348 he returned to Scotland from France and…
(Encyclopedia) Morton, James Douglas, 4th earl of, d. 1581, Scottish nobleman. A nephew of Archibald Douglas, 6th earl of Angus, he married Elizabeth Douglas, from whose father he inherited (1553)…
(Encyclopedia) Albemarle, Arnold Joost van Keppel, 1st earl ofAlbemarle, Arnold Joost van Keppel, 1st earl ofălˈbəmärl [key], 1669–1718, Dutch adherent and constant companion of William III of…
(Encyclopedia) Northumberland, Henry Percy, 4th earl of, 1446–89, English nobleman. When his father, the 3d earl, was killed fighting in the Lancastrian army at Towton (1461), he was imprisoned by…
Proving Lines Are ParallelGeometryCongruent TrianglesCPOCTACThe Big FiveThe SAS PostulateThe ASA PostulateThe AAS TheoremProving Segments and Angles Are CongruentProving Lines Are Parallel CPOCTAC…
(Encyclopedia) Douglas, Archibald, 8th earl of Angus, 1555–88, Scottish nobleman; grandnephew of Archibald Douglas, 6th earl of Angus. During the regency (1572–78) of his uncle, James Douglas, 4th…
(Encyclopedia) Nottingham, Charles Howard, 1st earl ofNottingham, Charles Howard, 1st earl ofnŏtˈĭngəm [key], 1536–1624, English nobleman. A member of one of the branches of the Howard family, he…