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As per tradition the kingdoms of Austria and Bohemia are held in personal union. Bohemia's crown dates (officially) from 1212. Austria's a more recent 1898.

Austria[]

Austria was originally a march (margraviate) within Bavaria.

House of Babenberg
Leopold I Herzog Leopold I. Babenberg (976-994)
Henry I Herzog Heinrich I. Babenberg (994-1018
Adalbert Adalbert der Siegreiche (1018-1055)
Ernest Ernst II. der Tapfere (1055-1075)
Leopold II Herzog Leopold II. Babenberg (1075-1095)
Leopold III Herzog Leopold III. Babenberg (1095-1136)
Leopold IV Markgraf Leopold IV. Babenberg (1137-1141)
Henry II Herzog Heinrich II. Babenberg (1141-1156)

The 1156 Prviliegium Minus elevates the March to a Duchy, making it independent of Bavaria.

House of Babenberg
Henry II Herzog Heinrich II. Babenberg (1156-1177)
Leopold V Herzog Leopold V. Babenberg (1177-1194)
Frederick I Herzog Friedrich I. der Christliche (1195-1198)
Leopold VI Herzog Leopold VI. Babenberg (1198-1230)
Frederick II Herzog Friedrich II. Babenberg (1230-1246)

After Frederick's death Austria is disputed between various claimants, the longest lasting being Ottokar II of Bohemia (1251-1278). He is eventually defeated by Emperor Rudolph I who would divide his lands between his sons.

House of Hapsburg
Rudolph I Rudolph I HRE (The Kalmar Union) (1278-1282)
Albert I (1282-1308)
Rudolph II (1282-1283)
Rudolph III (1282-1307)
Frederick I (1308-1330)
Leopold I (1308-1326)
Albert II (1330-1358)
Otto I (1330-1339)
Frederick II (1339-1344)
Leopold II (1339-1344)
Rudolph IV (1358-1365)
Albert III (1365-1379)

Albert's three sons divide the duchy (the title of Archduke was a 1359 fabrication which was only confirmed in 1513 when Austria was reunited). The death of his cousins without heirs allows Sigismund, Duke of Inner Austria, to reunite the lands over the course of his rule.

House of Hapsburg
Sigismund (1513-1524)
Maximilian I (1524-1543)
Maximilian II (1543-1569)
Albert IV (1569-1580)
Frederick III

Emperor Frederick VI

(1580-1606)
Charles I

Emperor Charles VI

William Scrots 001 (1606-1631)
Rudolph V

Emperor Rudolph II

Peter Paul Rubens 196 (1631-1649)
Rudolph VI

Emperor Rudolph III

Justus suttermans, ritratto del duca alfonso IV d'este, 1653-59 (cropped) (1649-1687)
Charles II (1687-1702)
Rupert

Emperor Rupert

(1702-1748)
Maximilian III (1748-1750)
Frederick IV (1750-1769)
Leopold III (1769-1800)
Maximilian IV (1800-1816)
Charles III (1816-1842)
George

Emperor George

(1842-1864)
Leopold IV (1864-1896)
Charles IV (1896-1898)

After much bartering in the Imperial Diet the title of King of Austria is finally bestowed on the Archdukes in 1898, though this came with the provision, occasionally contested, that they should not pursue an additional electorate for Austria.

House of Hapsburg
Charles I (1898-1905)
Leopold I (1905-1908)
Leopold II (1908-1920)
Charles II

Emperor Charles VIII

Ferdinand I; Keizer van Oostenrijk (1920-1955)
Leopold III (1955-1987)
Leopold IV (1987-2009)
Leopold V (2009-)

Bohemia[]

The Kings of Bohemia are usually dated from 1212 when the title was confirmed by the Sicilian Bull, though an illustrious line of Dukes stretches back to the early 9th century. Previous dukes did claim the title of king however it was not a hereditary title.

House of Premyslid
Ottokar I PremyslOtakarI Parleruvnahrobek (1198-1230)
Wenceslaus I VaclavGelnhausenovekodexu (1230-1253)
Ottokar II
Ottokar II Premysl
(1253-1278)
Wenceslaus II Codex Manesse Wenzel II. von Böhmen (1278-1305)
Wenceslaus III
Wenzel3
(1305-1306)
House of Meinhardiner
Henry I
JindrichKorutansky pecet1303
(1306, 1307-1310)
House of Hapsburg
Rudolph I (1306-1307)

John of Luxembourg marries Elizabeth, the last heir of Wenceslaus II.

House of Luxembourg
John I John of Luxemburg (1310-1346)
Charles I Charles IV-John Ocko votive picture-fragment (1346-1374)
Wenceslaus IV

Emperor Wenceslaus

Wenceslaus I Luxem (The Kalmar Union) (1374-1400)
Charles II

Emperor Charles IV

Charles II Luxem (The Kalmar Union) (1400-1426)
Sigismund I

Emperor Sigismund I

Sigismund I Luxem (The Kalmar Union) (1426-1437)
Matthew

Emperor Matthew

Matthew Luxem (The Kalmar Union) (1437-1444)
John II John II Luxem (The Kalmar Union) (1444-1478)
Sigismund II

Emperor Sigismund II

Sigismund II Luxem (The Kalmar Union) (1478-1502)
John III

Emperor John I

John III Luxem (The Kalmar Union) (1502-1536)
Wenceslaus V Wenceslaus II Luxem (The Kalmar Union) (1536-1540)
Henry of Prague

Queen Joanna as regent

Portrait of Don Juan of Austria by Coello 1559-60 (1540-1550)

The death of Henry of Prague before he can reach his majority gives the Bohemian magnates an opportunity to break with Luxembourg rule. Maximilian II of Austria is elected.

House of Hapsburg
Maximilian I (1543-1569)
Albert I (1569-1580)
Frederick I

Emperor Frederick VI

(1580-1606)
Charles III

Emperor Charles VI

William Scrots 001 (1606-1618)

During the Bohemian Revolt which began the Fifty Years War the Protestant Bohemian nobles rejected the Austrian archduke and with Schmalkaldic support elected William-George, Prince of Oldenburg as the new Protestant King of Bohemia. His rule lasted only until the Catholic Empire marshals its forces and reconquers Bohemia. Both him and his daughter Catherine are recognised by the Protestant Bohemian lords as King and Queen in absentia.

House of Oldenburg
William-George Kurfyrst Frederik V af Pfalz (1618-1621)
Catherine Rodrigo de Villandrando - Isabel of France - WGA25100 (1629-1668)

Throughout the Fifty Years War the Austrian archdukes continue to use the title of 'King of Bohemia' though none are ever crowned in Prague and officially the throne is vacant. The Treaty of Copenhagen in 1668 returns Bohemia to Luxembourg rule, a sop to offset their loss of Brandenburg and a snub to Austria.

House of Luxembourg
Henry III 983px-Godefridus Schalcken - Portrait of Stadholder-King William III (1650- 1702) - 158 - Mauritshuis (1668-1669)
John IV

Emperor John II

Lancelot Volders - Portrait of Henry Casimir II, Prince of Nassau-Dietz (1669-1680)

While John IV is on his apparent deathbed (he recovers) the Prague Diet decides they will not accept the reactionary and widely despised Prince Charles of Utrecht as his successor. The nobles reach out to various parties but running out of time and options invite Austria to retake the crown. Archduke (and Emperor) Rudolph VI is confirmed as king after the brief and indecisive War of Bohemian Succession.

House of Hapsburg
Rudolph II

Emperor Rudolph III

Justus suttermans, ritratto del duca alfonso IV d'este, 1653-59 (cropped) (1680-1687)
Charles IV (1687-1702)
Rupert

Emperor Rupert

(1702-1748)
Maximilian II (1748-1750)
Frederick III (1750-1769)
Leopold I (1769-1800)
Maximilian III (1800-1816)
Charles V (1816-1842)
George

Emperor George

(1842-1864)
Leopold II (1864-1896)
Charles VI (1896-1898)
Leopold III (1905-1908)
Leopold IV (1908-1920)
Charles VII

Emperor Charles VIII

Ferdinand I; Keizer van Oostenrijk (1920-1955)
Leopold V (1955-1987)
Leopold VI (1987-2009)
Leopold VII (2009-)
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