1,111 selected
- Passau
- Pegnitz
- Peine
- Penang
- Perpignan
- Peru
- Perzische Rijk
- Pessac
- Pfalz (Electorate)
- Pfalz-Birkenfeld-Zweibrücken
- Pforzheim
- Phalsbourg & Lixheim
- Philippines
- Phoenicia
- Phrygia
- Piacenza
- Piedmont
- Pinneberg
- Pirmasens
- Pisa
- Pisidia
- Pitcairn Islands
- Poland
- Polzin
- Pomerania
- Pomerania-Wolgast
- Pondichery
- Pontos
- Portugal
- Portuguese Indies
- Posen
- Pössneck
- Pratihara
- Prenzlau
- Prince Edward Island
- Provisional Government of China
- Prussia
- Pudukkottai
- Puerto Rico
- Qatar
- Qatar and Dubai
- Quakenbrück
- Quedlinburg
- Querfurt
- Ragusa
- Ras Al Khaimah
- Rastatt
- Ratlam
- Ravenna
- Ravensburg
- Reckheim
- Reformed Government of the Republic of China
- Regensburg
- Région Provençale
- Réunion
- Reuss-Obergreiz
- Reuss-Schleiz
- Reutlingen
- Reval
- Rhodesia
- Rhodesia and Nyasaland
- Riau Archipelago
- Rietberg
- Riga
- Roermond
- Roman Empire
- Roman Republic
- Roman Republic - Ancona
- Romania
- Roncq
- Rosenheim
- Rostock
- Rotenburg
- Rothenburg ob der Tauber
- Rouen
- Royan
- Ruanda-Urundi
- Rudolstadt
- Russia
- Rwanda
- Rwanda and Burundi
- Saar-Buckenheim
- Saargemünd
- Saarland
- SADR (Sahrawi Arab Democratic Republic)
- Sagan
- Sahrawi Arab Democratic Republic (SADR)
- Saint Helena
- Saint Helena and Ascension
- Saint Kitts & Nevis
- Saint Lucia
- Saint Thomas and Prince
- Saint Vincent
- Saint-André de l'Eure
- Saint-Gaudens
- Saint-Germain-en-Laye
- Saint-Pierre and Miquelon
- Saksen-Alt-Gotha
- Salzburg
- Samoa
- Samudera-Pasai
- San Luis Potosi
- San Marino
- Sandau
- Sangerhausen
- Sankt Gallen
- Sannois
- Santander, Palencia and Burgos
- Sarawak
- Sardinia
- Sassanian Empire (Sassanid Empire)
- Sassanid Empire (Sassanian Empire)
- Satavahana
- Saudi Arabia
- Savoy
- Saxe-Altenburg
- Saxe-Ernestine
- Saxe-Hildburghausen
- Saxe-Meiningen
- Saxe-Weimar-Eisenach
- Saxony
- Saxony-Albertine
- Saxony-Coburg-Gotha
- Saxony-Coburg-Saalfeld
- Saxony-Gotha-Altenburg
- Sayn-Altenkirchen
- Sayn-Wittgenstein-Wittgenstein
- Schaumburg-Hessen
- Schaumburg-Lippe
- Scheinfeld
- Schleswig-Holstein
- Schmalkalden
- Schmölln
- Schwäbisch Hall
- Schwarzburg-Rudolstadt
- Schwarzburg-Sondershausen
- Schweidnitz
- Schwerin an der Warthe
- Schwyz
- Scotland
- Segarra de Gaia
- Selb
- Seleucid Empire
- Senegal
- Serbia
- several countries
- Seychelles
- Shandong
- Shanxi
- Sharjah
- Shensi
- Siberia
- Sichuan
- Sicily
- Siegen
- Sierra Leone
- Sikh Empire
- Silesia
- Silesia-Liegnitz-Brieg
- Sindh
- Singapore
- Sinsheim
- Sinzig
- Sion (Sitten)
- Sitten (Sion)
- Skandagupta
- Slavonia
- Sleswig-Holstein-Gottorp
- Slovakia
- Slovenia
- Soest
- Solingen
- Solms-Lich
- Solomon Islands
- Solothurn
- Somalia
- Somaliland
- Sonthofen
- South Africa
- South Arabia
- South Georgia and the South Sandwich Islands
- South Korea
- South Sudan
- South-Peru
- Southern Rhodesia
- Spain
- Spandau
- Spanish Netherlands
- Speyer
- Spitzbergen
- Spremberg
- Sri Lanka
- Stadtamhof
- Stadtlengsfeld
- Stavelot
- Sterkrade
- Stettin
- Stevensweert
- Stolberg-Rossla
- Stolberg-Stolberg
- Stoltenhoff Island
- Straits Settlements
- Stralsund
- Strasbourg
- Sudan
- Suhl
- Sulawesi (Celebes)
- Sultana
- Sumatra
- Surinam (Suriname)
- Suriname (Surinam)
- Swaziland (Eswatini)
- Sweden
- Swinemünde
- Switzerland
- Syria
- Szechuan-Shensi Sovjet
- Taiwan
- Tajikistan
- Tangermünde
- Tannu Tuva
- Tanzania
- Tassarolo
- Tatarstan
- Terceira Island
- Teschen
- Tettnang
- Thailand
- Thale
- The Gambia
- The Netherlands and Belgium
- Thessalonica
- Thorn
- Thrace
- Tibet
- Ticino
- Timor
- Tirol
- Togo
- Tokelau
- Tonga
- Tonk
- Tonkin
- Torgau
- Toulouse
- Tournai
- Tranquebar
- Transnistria
- Transylvania
- Traunstein
- Not filled in