Territorial change of Mercia (Kingdom of Mercia)

“Mercia”(Kingdom of Mercia) — appears in this map’s data from AD 534 to 925. Its territory was largest in AD 800 – 805, at ≈ 97 thousand km².

Territory by period

Period	Area
AD 534 – 576	≈ 23 thousand km²
AD 577 – 616	≈ 24 thousand km²
AD 617 – 627	≈ 27 thousand km²
AD 628 – 646	≈ 38 thousand km²
AD 647 – 655	≈ 38 thousand km²
AD 661 – 665	≈ 38 thousand km²
AD 666 – 681	≈ 41 thousand km²
AD 682 – 691	≈ 45 thousand km²
AD 692 – 704	≈ 45 thousand km²
AD 705 – 740	≈ 48 thousand km²
AD 741 – 754	≈ 75 thousand km²
AD 755 – 762	≈ 48 thousand km²
AD 763 – 771	≈ 51 thousand km²
AD 772 – 782	≈ 56 thousand km²
AD 783 – 787	≈ 58 thousand km²
AD 788 – 799	≈ 85 thousand km²
AD 800 – 805	≈ 97 thousand km²
AD 806 – 824	≈ 71 thousand km²
AD 825 – 829	≈ 44 thousand km²
AD 840 – 859	≈ 48 thousand km²
AD 860 – 865	≈ 48 thousand km²
AD 866 – 869	≈ 45 thousand km²
AD 870 – 874	≈ 38 thousand km²
AD 875 – 877	≈ 26 thousand km²
AD 878 – 879	≈ 31 thousand km²
AD 880 – 883	≈ 22 thousand km²
AD 884 – 897	≈ 44 km²
AD 899 – 921	≈ 44 km²
AD 922 – 925	≈ 44 km²

Outline at its largest extent

Outline of the territory in AD 800 – 805 (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.

Frame	Area	Rank
AD 534	≈ 23 thousand km²	42 of 56
AD 536	≈ 23 thousand km²	42 of 56
AD 540	≈ 23 thousand km²	44 of 64
AD 546	≈ 23 thousand km²	45 of 64
AD 555	≈ 23 thousand km²	46 of 67
AD 561	≈ 23 thousand km²	47 of 68
AD 567	≈ 23 thousand km²	48 of 68
AD 569	≈ 23 thousand km²	48 of 68
AD 577	≈ 24 thousand km²	48 of 70
AD 587	≈ 24 thousand km²	47 of 67
AD 592	≈ 24 thousand km²	48 of 70
AD 602	≈ 24 thousand km²	44 of 69
AD 612	≈ 24 thousand km²	44 of 68
AD 617	≈ 27 thousand km²	40 of 65
AD 623	≈ 27 thousand km²	44 of 69
AD 626	≈ 27 thousand km²	45 of 67
AD 627	≈ 27 thousand km²	45 of 67
AD 628	≈ 38 thousand km²	41 of 65
AD 629	≈ 38 thousand km²	44 of 68
AD 630	≈ 38 thousand km²	45 of 68
AD 633	≈ 38 thousand km²	44 of 69
AD 634	≈ 38 thousand km²	42 of 66
AD 638	≈ 38 thousand km²	45 of 71
AD 641	≈ 38 thousand km²	45 of 71
AD 644	≈ 38 thousand km²	47 of 74
AD 647	≈ 38 thousand km²	46 of 70
AD 661	≈ 38 thousand km²	45 of 68
AD 666	≈ 41 thousand km²	44 of 67
AD 674	≈ 41 thousand km²	42 of 69
AD 682	≈ 45 thousand km²	42 of 68
AD 692	≈ 45 thousand km²	43 of 67
AD 705	≈ 48 thousand km²	42 of 68
AD 710	≈ 48 thousand km²	42 of 69
AD 718	≈ 48 thousand km²	41 of 69
AD 724	≈ 48 thousand km²	44 of 69
AD 732	≈ 48 thousand km²	41 of 67
AD 741	≈ 75 thousand km²	38 of 71
AD 750	≈ 75 thousand km²	46 of 76
AD 751	≈ 75 thousand km²	47 of 77
AD 755	≈ 48 thousand km²	51 of 79
AD 757	≈ 48 thousand km²	48 of 76
AD 763	≈ 51 thousand km²	46 of 74
AD 768	≈ 51 thousand km²	46 of 75
AD 772	≈ 56 thousand km²	45 of 72
AD 775	≈ 56 thousand km²	43 of 73
AD 778	≈ 56 thousand km²	46 of 72
AD 783	≈ 58 thousand km²	45 of 73
AD 788	≈ 85 thousand km²	36 of 68
AD 793	≈ 85 thousand km²	40 of 78
AD 800	≈ 97 thousand km²	40 of 77
AD 806	≈ 71 thousand km²	42 of 73
AD 814	≈ 71 thousand km²	42 of 76
AD 825	≈ 44 thousand km²	48 of 77
AD 840	≈ 48 thousand km²	47 of 80
AD 850	≈ 48 thousand km²	49 of 86
AD 860	≈ 48 thousand km²	51 of 89
AD 866	≈ 45 thousand km²	55 of 95
AD 870	≈ 38 thousand km²	59 of 94
AD 875	≈ 26 thousand km²	63 of 97
AD 876	≈ 26 thousand km²	63 of 97
AD 878	≈ 31 thousand km²	62 of 100
AD 880	≈ 22 thousand km²	69 of 102
AD 882	≈ 22 thousand km²	67 of 101
AD 884	≈ 44 km²	102 of 102
AD 886	≈ 44 km²	104 of 104
AD 887	≈ 44 km²	107 of 107
AD 888	≈ 44 km²	108 of 108
AD 892	≈ 44 km²	108 of 108
AD 896	≈ 44 km²	109 of 109
AD 899	≈ 44 km²	117 of 117
AD 900	≈ 44 km²	114 of 114
AD 911	≈ 44 km²	123 of 123
AD 922	≈ 44 km²	117 of 117

Its highest rank was in AD 788: number 68 of 36.

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).

Wessex — 67 frames
Kingdom of Gwent — 56 frames
Kingdom of East Anglia — 53 frames
Kingdom of Gwynedd — 50 frames
Brycheiniog — 46 frames
Kingdom of Powys — 45 frames
Northumbria — 44 frames
Kingdom of Essex — 27 frames
Celtic Britons — 24 frames
Kingdom of Lindsey — 15 frames
Deira — 13 frames
Kingdom of Kent — 13 frames
Rheged — 12 frames
Hwicce — 9 frames
Cornwall — 6 frames
Vikings — 5 frames
Kingdom of Sussex — 5 frames
Danelaw — 3 frames

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 6 by area.

Frame		Other country	Area
AD 830	lost	Wessex	≈ 44 thousand km²
AD 656	lost	Northumbria	≈ 38 thousand km²
AD 788	gained	Wessex	≈ 26 thousand km²
AD 741	gained	Wessex	≈ 26 thousand km²
AD 825	lost	Wessex	≈ 26 thousand km²
AD 884	lost	Wessex	≈ 22 thousand km²

Wikipedia summary

Mercia () was an early medieval Anglo-Saxon kingdom, one of the seven kingdoms of the Anglo-Saxon period. It was centred on the River Trent and its tributaries, in a region now known as the Midlands of England.

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

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