Mucaille, bishop, [158]
Muiredach takes the surname Mac Carthy, [61]
Muirchu Maccu Machteni, his life of St. Patrick, [136], [142], [148], [151]
Muircheartach Mór mac Earca, [232]
Muircheartach of the Leather Cloaks, [428]
Muirthemni, derivation of, [49]
Muiredach Mac Robertaigh, see "[Marianus Scotus]"
Munster, book of, [59]; the two Munsters, [29]
Muratori, [149]