Territorial change of Duchy of Brittany

“Duchy of Brittany” — appears in this map’s data from AD 947 to 1491. Its territory was largest in AD 1250 – 1293, at ≈ 37 thousand km².

Territory by period

PeriodArea
AD 947 – 989≈ 32 thousand km²
AD 990 – 1146≈ 37 thousand km²
AD 1147 – 1151≈ 37 thousand km²
AD 1152 – 1168≈ 37 thousand km²
AD 1169 – 1187≈ 37 thousand km²
AD 1206 – 1219≈ 37 thousand km²
AD 1220 – 1249≈ 37 thousand km²
AD 1250 – 1293≈ 37 thousand km²
AD 1294 – 1332≈ 37 thousand km²
AD 1333 – 1343≈ 37 thousand km²
AD 1344 – 1362≈ 30 thousand km²
AD 1363 – 1401≈ 30 thousand km²
AD 1402 – 1421≈ 37 thousand km²
AD 1422 – 1428≈ 37 thousand km²
AD 1440 – 1452≈ 37 thousand km²
AD 1453 – 1481≈ 37 thousand km²
AD 1482 – 1486≈ 37 thousand km²
AD 1487 – 1491≈ 37 thousand km²
AD 947AD 1491

Outline at its largest extent

Outline of the territory in AD 1250 – 1293 (map drawing). Neighbouring countries are not drawn.

Area and rank by frame

For each frame in which borders change: this country’s territory and its rank by area among the countries that have territory in that frame.

FrameAreaRank
AD 947≈ 32 thousand km²79 of 117
AD 960≈ 32 thousand km²80 of 118
AD 961≈ 32 thousand km²80 of 119
AD 962≈ 32 thousand km²82 of 120
AD 970≈ 32 thousand km²79 of 115
AD 980≈ 32 thousand km²74 of 111
AD 990≈ 37 thousand km²75 of 126
AD 1000≈ 37 thousand km²75 of 126
AD 1003≈ 37 thousand km²72 of 125
AD 1010≈ 37 thousand km²72 of 130
AD 1015≈ 37 thousand km²73 of 141
AD 1018≈ 37 thousand km²72 of 138
AD 1028≈ 37 thousand km²72 of 130
AD 1034≈ 37 thousand km²72 of 129
AD 1040≈ 37 thousand km²71 of 136
AD 1046≈ 37 thousand km²69 of 136
AD 1056≈ 37 thousand km²82 of 146
AD 1066≈ 37 thousand km²82 of 138
AD 1072≈ 37 thousand km²84 of 138
AD 1085≈ 37 thousand km²81 of 137
AD 1094≈ 37 thousand km²82 of 135
AD 1099≈ 37 thousand km²83 of 139
AD 1111≈ 37 thousand km²85 of 140
AD 1126≈ 37 thousand km²87 of 138
AD 1139≈ 37 thousand km²88 of 140
AD 1147≈ 37 thousand km²88 of 148
AD 1152≈ 37 thousand km²87 of 140
AD 1169≈ 37 thousand km²85 of 137
AD 1177≈ 37 thousand km²84 of 136
AD 1206≈ 37 thousand km²85 of 149
AD 1210≈ 37 thousand km²85 of 146
AD 1216≈ 37 thousand km²84 of 143
AD 1220≈ 37 thousand km²86 of 143
AD 1227≈ 37 thousand km²85 of 139
AD 1236≈ 37 thousand km²78 of 137
AD 1241≈ 37 thousand km²70 of 130
AD 1250≈ 37 thousand km²62 of 118
AD 1260≈ 37 thousand km²60 of 123
AD 1270≈ 37 thousand km²60 of 123
AD 1272≈ 37 thousand km²60 of 121
AD 1279≈ 37 thousand km²58 of 122
AD 1285≈ 37 thousand km²61 of 128
AD 1294≈ 37 thousand km²71 of 145
AD 1305≈ 37 thousand km²72 of 152
AD 1314≈ 37 thousand km²72 of 151
AD 1326≈ 37 thousand km²67 of 144
AD 1333≈ 37 thousand km²69 of 145
AD 1344≈ 30 thousand km²84 of 148
AD 1352≈ 30 thousand km²80 of 139
AD 1356≈ 30 thousand km²80 of 139
AD 1363≈ 30 thousand km²82 of 147
AD 1375≈ 30 thousand km²86 of 154
AD 1385≈ 30 thousand km²88 of 154
AD 1392≈ 30 thousand km²88 of 154
AD 1395≈ 30 thousand km²83 of 149
AD 1402≈ 37 thousand km²77 of 141
AD 1407≈ 37 thousand km²76 of 141
AD 1415≈ 37 thousand km²80 of 136
AD 1422≈ 37 thousand km²82 of 132
AD 1440≈ 37 thousand km²84 of 129
AD 1450≈ 37 thousand km²85 of 127
AD 1453≈ 37 thousand km²84 of 130
AD 1459≈ 37 thousand km²86 of 132
AD 1463≈ 37 thousand km²85 of 132
AD 1468≈ 37 thousand km²86 of 140
AD 1475≈ 37 thousand km²82 of 137
AD 1482≈ 37 thousand km²80 of 131
AD 1487≈ 37 thousand km²81 of 129

Its highest rank was in AD 1279: number 122 of 58.

Neighbouring countries

In order of the number of frames in which they share a border (a parent state, its colonies and other names of the same country are counted as one group).

Territory exchanged with

Computed from changes in territory between frames (only changes of about 20,000 km² or more are counted; these are not actual routes of advance). Top 2 by area.

FrameOther countryArea
AD 1188lostAngevin Empire≈ 37 thousand km²
AD 1429lostKingdom of England≈ 37 thousand km²

Notes on how this country is shown

Parent state: Kingdom of France (fief) — drawn in a lighter shade of the parent state’s colour on the map.

Wikipedia summary

The Duchy of Brittany (Breton: Dugelezh Breizh [dyˈɡɛːlɛs ˈbrɛjs]; French: Duché de Bretagne) was a medieval feudal state that existed between approximately 939 and 1547.

Wikipedia (English) “Duchy of Brittany”, introduction (first sentences) · text under CC BY-SA 4.0 · read more on Wikipedia

Show on the map — open the AD 1250 frame