Aachen

Aalen

Aargau

Aatundaland

Abasgia (Abkhazia)

Abcoude

Abdera

Acanthos

Achaea

Aegean General Survey

Aegiale (Ægiale)

Aegina (Ægina)

Aegion (Ægion)

Aena

Aenia

Aethikes (Æthikes)

Aetolia (Ætolia)

Agathyrsi

Agder

Agira

Agraeoi (Agræoi)

Agrigento

Agrinio

Ahhiyawa

Aileach

Akarnanes

Akova

Aland (Åland)

Alba Longa

Albania

Albania (Kingdom of)

Albarracín (Sahla Banu Razin)

Albi

Albret

Alderney (Aurigny)

Alemanni

Alençon

Algarve

Algeciras (al-Djazira al-Hadrá)

Aliartos

Allaria

Almelo

Almería (al-Mariyya)

Almopia

Alos

Alsace

Altena

Alvheim

Alzyia

Amalfi

Amazons

Amboise

Ambracia

Ameland

Amiens

Amorgos

Amphipolis

Ampurias

Amstelland (City of Amsterdam)

Anaktorio

Anapa

Anaphi

Anatolia General Survey

Ancona

Andorra

Andros

Angeln

Angelokastro

Anglesey

Angoulême

Angus

Anhalt

Anholt

Anjou

Anopolis

Anthedon

Antikera

Antikythira

Antiparos

Antissa

Antwerp

Aones

Aperandoi

Apollonia

Appenzell

Aptera

Apulia

Aquileia

Aquitaine

Aradaena

Aragón

Arborea

Arcadia

Arcesine

Archons of Athens

Arcos

Arda

Aremberg

Argos

Argyll

Ariccia

Arimnus

Arjona

Arkades

Arlon

Armagh

Armagnac

Arme-Supria (Nairi)

Armenia

Arminyah

Arran

Arran

Arsinoë

Arthuret

Artois

Arundel

Arverni

Astakos

Astarac

Astean

Asti

Asturias

Astypalaea

Athamanes

Athens

Atholl

Athos

Atindanes

Atrebates

Augsburg

Aumale

Austrasia

Austria

Auvergne

Auxerre

Avandes

Avaristan

Aversa

Avia

Avignon

Axos

Ayrarat

Azerbaijan

Azores

Baden

Baku

Balaton

Balkaria

Bamburgh

Banings

Bar-le-Duc

Bar-sur-Seine

Barbagia

Barby

Barcelona

Bari

Barra

Barsils

Basel

Bashkir (Bashkorts)

Bastarnae

Batenburg

Bath

Baux

Bavaria

Bavarii

Bayanid Bulgars

Bedford

Beichlingen

Belarus

Belgium

Bellême

Belz

Benevento

Bentheim

Beormingas

Berezan

Berg

Bergamo

Bergen-op-Zoom

Berlad

Berne

Bernicia

Berry

Besalu

Besançon

Besh Tau El

Beziers

Bigorre

Bihar

Bilsaete

Birka

Biscay

Blankenheim-Schleiden

Blois

Boeotoi

Bohemia (Czechia, Czech Republic)

Bohuslän

Bologna

Bolokhovo Confederation