Azure, on a bend between two lyres argent a laurel wreath palewise azure, the Shire of Ma'ale Giborim	Argent, a chevron Or fimbriated between four crosses bottony three and one sable, a bordure gules, Magdalena Eskilsdotter	Purpure, a sun argent eclipsed purpure within a bordure argent ermined purpure, Magdalena Francisca de Goya	Or, on a bend sinister purpure between a ram's head cabossed sable and a cinquefoil purpure seeded three fleurs-de-lys palewise Or, Magdalena Leonardi
Azure, a greyhound passant and on a chief Or three frets couped vert, Mairghread ni Fhlaithbheartaigh	Per pale sable and argent, two roses slipped and leaved counterchanged and on a chief wavy purpure, a crescent argent, Mairghread of Herth	Argent, a pentaskelion of peacock feathers proper within a bordure wavy purpure, Malcolm Rorie Rowntree	Per pale sable and argent all goutty counterchanged, a sickle gules, Måns Knutsson
Gules, a chevron couped Or, Mar Arthursson	Azure, a chevron throughout cotised argent between two roundels and a lymphad Or, Marcus von Stromarn	Argent semy of goutes gules, on a bend sable three eagles displayed palewise Or, Maredudd ap Gwylim	Per pale gules and azure, a griffin segreant queue-fourchy and an orle Or, Mareike van Orley
Azure semy-de-lys, a decrescent argent, Margareta Blacke of York	Per pale azure and argent, a sinister wing inverted and a dexter wing inverted and in chief a mullet of six points all counterchanged, Margareta of Uma	Per pale sable and gules, a unicorn rampant contourny argent between three daisies proper, Margerite von Buchholtz	Vert semy of roses, a unicorn couchant contourny argent, Marguerite Bouchard
Purpure, a tree eradicated and on a chief embattled Or three mullets of six points purpure, Maria of Nea Nikopolis	Sable, on a bend between two swan's heads couped argent three fleurs-de-lys palewise sable, Marie de Besançon	Argent, a griffin segreant to sinister azure and on a chief embattled sable, three snowflakes argent, Marion Gwendolyn Morgan	Sable, a chevron argent and a bordure argent billetty sable, Markus mac Cumhaill
Argent, two cross-peen hammers in saltire sable and a mountain of three peaks vert, Markus von Brixlegg	Azure, a mandrake argent between three goblets Or, Martin Andreas of Windsor	Quarterly sable and argent, a fret counterchanged, Martin Ragnarsson	Per pale embattled vert and azure, Mary Elizabeth Sutton
Argent, a chevron inverted cotised purpure, Mary verch Thomas	Per pale sable and Or, a trefoil counterchanged, Maryan Blacke of York	Sable, a phoenix argent rising from flames proper between three crosses formy argent, Mathieu de la Croix	Per pale sable and azure, a phoenix displayed and sinister facing argent enflamed and on a chief triangular Or an oak leaf sable, Matthew Blackleaf
Sable, a lion rampant and a bordure embattled Or ermined gules, Maximilian Alois von Brandenberg	Or, three sprigs of oak vert fructed proper, on a chief gules a lion dormant Or, Mealla inghean uí Shirideáin	Sable, on a pile engrailed between six acorns inverted argent a thistle purpure slipped and leaved vert and a crescent sable, Medb of Glendalough	Or, a triquetra inverted and a fess wavy abased, a bordure sable, Melane Isidora of Blackwater
Azure, three mullets of eight points ermine, Melchior Talvenpoika	Azure, on a pale argent between in chief a sun in his splendour Or and a moon in her complement argent a serpent glissant palewise azure, Meredith Stafford	Checky azure and Or, a bend cotised gules, Merigold the Mirthful	Vert, on a pile sable fimbriated a sun, and on a chief Or a lion passant purpure, Michael DeLacy
Per pale sable and gules, a chevron between three caltraps Or, all within a bordure compony sable and argent, each sable section charged with a decrescent Or, Michael FitzRoderick the Moor	Vert, two bars wavy argent semy of holly leaves vert, Michael of Aquitaine	Per pale embattled sable and Or, a whelk shell Or and a bow, string to dexter, gules, Michelle of Polderslot	Azure, two arrows inverted in saltire Or barbed and on a chief embattled argent three wolf's paw prints azure, Mickel Biörnsson till Wargegården
Per pale azure and argent, a castle issuant from base, between its towers a laurel wreath counterchanged, the Canton of Miehonlinna	Per pale embattled gules and argent, Mikael Rantzow	Per pale purpure and vert, on a pile inverted between two lions combattant guardant Or, a laurel wreath gules, Monarch's Rest, Canton of	Argent, a rowan tree fructed issuant from a base gules, and on the base three bezants, Mór inghean Bhriain
Argent, a fess wavy and in dexter chief an escallop azure, Morgan fitz Arthur de Grey	Quarterly sable and purpure, an unicorn's head couped argent, horned and crined and between in bend sinister two unicorn's horns bendwise Or, Morgan Mc Innes	Argent estencely, on a bend sinister engrailed azure three decrescents palewise argent, Morwenna of Morwenstow	Gules, in bend three clenched gauntlets Or, Murdoch of Muirhead
Vert, three pears in pale Or and on a chief argent two holly leaves fesswise vert, Mylisant Perry	Vert, two laurel wreaths Or and a mountain argent, the Shire of Mynydd Gwyn