- machinery 1, 2
- Magna Carta 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
- Maine 1, 2, 3, 4, 5, 6, 7, 8, 9
- maintenance see land ownership
- Malcolm III, King of Scotland 1
- Maldon, Battle of (991) 1, 2
- Malmesbury, William of 1, 2, 3, 4
- Malory, Thomas 1
- Mandeville, Geoffrey de 1
- Mandeville, William de 1
- Map, Walter 1, 2, 3, 4, 5
- Margaret, Queen (first wife of Henry I) 1
- Margaret, Queen (wife of Henry VI) 1, 2, 3, 463, 4, 5, 6, 7, 8
- Margaret ‘Maid of Norway’ 1
- Mark, Philip, sheriff of Nottingham 1, 2
- Marshal, Richard 1, 2
- Marshal, William 1, 2, 3, 4, 5, 6, 7
- Matilda, Queen (wife of William I ‘the Conqueror’) 1, 2
- Matilda, Queen (wife of Henry I) 1, 2, 3
- Matilda, Empress (daughter of Henry I) 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
- mercenaries 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
- Mercia 1, 2, 3, 4, 5
- military organization and campaigns 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
- see also France; knights; navy; Normandy; William I ‘the Conqueror’; individual battles
- milling 1, 2, 3, 4
- mining 1, 2, 3
- monasteries 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35
- see also cathedrals by name; Church and Christianity; nunneries; papal authority; universities and colleges
- money see coinage; finance; taxes and subsidies
- Montfort, John de 1
- Montfort, Simon de 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
- Moreville, Hugh de 1, 2, 3
- Mortimer family 1, 2, 3, 4, 5
- Mortimer’s Cross, Battle of (1461) 1, 2
- Mowbray family 1, 2, 3, 4
- music 1
- myths see Arthur, King; Geoffrey of Monmouth; Glastonbury Abbey; Robin Hood; superstition and sorcery