Mary of Calabria, Princess (afterwards Duchess of Durazzo), [203], [206-7], [311], [214] et sq., [238], [248]
Masaniello, [242]
Masdea, Father, [327]
Mastai-Ferretti, Cardinal, [107], [255], [259], [262], [265] et sq.
Mastai-Ferretti, Count, [73] et sq., [81]
Mastai-Ferretti, Countess, [74] et sq.
Mastai-Ferretti, Giovanni. See Pius IX
Maurice, Emperor, [44-5], [51]
Maurus, [29] et sq.
Metternich, Count, [116], [119] et sq., [133], [290], [295], [299], [320]