Name
- Madden, Frederic, Knight, Keeper of Manuscripts, British Museum, 1801-18731
- Mainwaring, Henry, Lieutenant of Dover Castle1
- Malby, Nicholas, President of Connaught, 1530-1584, http://isni.org/isni/000000...1
- Mantua, Duchy and Marquisate of. Frederic II1
- Marcellus II, Pope1
- Marck, Érard, cardinal and Prince-Bishop of Liége, 1472-15381
- Margaret, of Anjou, Queen, 1430-14821
- Marnix van Sant Aldegonde, Philip1
- Marnix, Philip van, Heer van St Aldegonde, 1538-15981
- Martin, of Spain, of Aragon1
- Maurice, Landgrave of Hesse-Cassel1
- Maxwell, Robert, 5th Baron Maxwell, Warden of the West Marches of Scotland1
- Maxwell, Robert, 6th Baron Maxwell, 1525-15731
- Maxwell, William, Baron Herries1
- Medici, Catherine, Queen Consort of Henry II, King of France; Queen Mother of Francois II, Charles IX and Henri III, Kings of France, 1519-15891
- Medici, Ferdinando II, Grand Duke of Tuscany, nobleman, 1610-16701
- Medici, Marie, Queen Consort of France and Navarre, 1575-16421
- Mela, Bernard a, envoy of the Duke of Saxony1
- Melanchthon, Philip, Reformation theologian, 1497-1560, http://isni.org/isni/000000...1
- Mesa, Bernard de, Bishop of Elna and Trinopolis1