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This article lists 'Margraves and Electors of Brandenburg' during the period of time that Brandenburg was a constituent state of the Holy Roman Empire.
The Mark, or March of Brandenburg was one of the primary constituent states of the Holy Roman Empire. It was created as the Margraviate of Brandenburg by Albert the Bear, Margrave of the Northern March. In 1356, by the terms of the Golden Bull of Charles IV, the Margrave of Brandenburg was given the permanent right to participate in the election of the Holy Roman Emperor with the title of Elector ().
The line of Margrave-Electors came to an end with the fall of the Holy Roman Empire in 1806. Brandenburg was then incorporated into the Kingdom of Prussia, an independent kingdom which the Electors had ruled since 1701.

Contents

Margraves of Brandenburg

Electors of Brandenburg

Post-monarchy

Prime Minister of Brandenburg, 1945-1952

Prime Minister of Brandenburg, 1990-current

Margraves of Brandenburg

'Ascanian Dynasty'
'Name'		'Reign'		'Comments'
Albert I		1157–1170		Ruler of the Nordmark from 1134. Called "Albert the Bear".
Otto I		1170–1184		Son of Albert I. Ruled together with his father from 1144.
Otto II		1184–1205		Son of preceding.
Albert II		1205–1220		Brother.
★ John I ★ Otto III		★ 1220–1266 ★ 1220-1267		Co-rulers, sons of Albert II.
From 1266 to 1319, Brandenburg was held by the two lines of Brandenburg-Stendal and Brandenburg-Salzwedel, all of whom jointly shared the title of Margrave.
'Brandenburg-Stendal'			'Brandenburg-Salzwedel'
Co-rulers, sons of John I: ★ John II, 1266-1282 ★ Conrad, 1266-1304 ★ Otto IV, 1266-1308 ★ Henry I, 1266-1318			Co-rulers, sons of Otto III: ★ John III, 1267-1268 ★ Otto V, 1267-1298 ★ Otto VI, 1267-1291 ★ Albert III, 1267-1300
Co-rulers: ★ Waldemar, 1308-1319, son of Conrad ★ Henry II, 1319-1320, son of Henry I			Co-rulers: ★ Herman, 1298-1308 (alone from 1300) ★ John V, 1308-1317
After the extinction of the Ascanian dynasty in 1320, Brandenburg came under the control of the Emperor Louis IV of the House of Wittelsbach, who granted Brandenburg to his eldest son, Louis V of Bavaria.
'Wittelsbach Dynasty'
'Name'		'Reign'		'Comments'
Louis I "the Brandenburger"		1323–51		Son of Emperor Louis IV.
Louis II "the Roman".		1351–56		Half-brother of preceding; named Elector in 1356.

Electors of Brandenburg

'Wittelsbach Dynasty'
'Image'	'Name'	'Reign'	'Comments'
	Louis II "the Roman"	1356–1365	First Elector of Brandenburg.
	Otto V	1365–1373	Brother of preceding. Co-ruler of Brandenburg with his brother from 1351, but as a minor (b. 1346) took no part in administration until his brother's death. Abdicated 1373 but retained Electoral title. Died 1379.
'Luxemburg Dynasty'
'Image'	'Name'	'Reign'	'Comments'
	Wenceslaus	1373–1378	Emperor Charles IV forced the last Wittelsbach Elector to abdicate, and then installed his own son, Wenceslaus. As Wenceslaus was still a minor (b. 1361), the Emperor administered the margraviate for him.
	Sigismund	1378–1388	Younger brother of Wenceslaus; took control of Brandenburg on his brother's ascension as King of Germany and Bohemia. Gave up Brandenburg to his uncle Jobst as security for a substantial loan.
	Jobst of Moravia	1388–1411	Sigismund's first cousin, nephew of Charles IV. Elected as German King in 1410 in opposition to Sigismund, but died very shortly afterwards.
	Sigismund	1411–1415	Following Jobst's death, Sigismund regained control of Brandenburg and was elected undisputed King of Germany.
'Hohenzollern Dynasty'
'Image'	'Name'	'Reign'	'Comments'
	Frederick I	1415–1440	Originally Burgrave of Nuremberg. Appointed by King Sigismund in 1415 and enfeoffed in 1417. His eldest son John the Alchemist administered Brandenburg as Margrave from 1425 to 1437, but Frederick retained the Electorship.
	Frederick II	1440–1470	Son of Frederick I. Called "Irontooth" (). Administered Brandenburg from 1437 and became Elector on his father's death in 1440.
	Albert III Achilles	1470–1486	Brother.
	John Cicero	1486–1499	Son.
	Joachim I Nestor	1499–1535	Son. His younger brother, Albert was co-Margrave 1499-1513, but only Joachim was Elector.
	Joachim II Hector	1535–1571	Son.
	John George	1571–1598	Son.
	Joachim Frederick	1598–1608	Son.
	John Sigismund	1608–1619	Son. Duke of Prussia from 1618.
	George William	1619–1640	Son. Ruled during the Thirty Years' War. Also Duke of Prussia.
	Frederick William	1640–1688	Son. Called "the Great Elector". Also Duke of Prussia.
	Frederick III	1688–1713	Son. "King in Prussia" as Frederick I from 1701.
	Frederick William II	1713–1740	Son. King in Prussia. Called "the Soldier-King".
	Frederick IV	1740–1786	Son. King in Prussia as Frederick II to 1772; after annexations of Polish Prussian territory, "King of Prussia". Called "Frederick the Great".
	Frederick William III	1786–1797	Nephew. Second king of Prussia.
	Frederick William IV	1797–1806	Son. Last Elector of Brandenburg and third king of Prussia. The Holy Roman Empire was dissolved in 1806, after which Frederick William ruled as independent King of Prussia (including Brandenburg) to his death in 1840.

For further rulers of Brandenburg as part of Prussia, see ''List of rulers of Prussia''.

Post-monarchy

After the defeat of Nazi Germany in the Second World War, Brandenburg, which had previously been merely a province of Prussia, re-emerged as a German ''Land''.

Prime Minister of Brandenburg, 1945-1952

★ Karl Steinhoff (SPD/SED) 1945 - 1949

★ Rudolf Jahn (SED) 1949 - 1952
After being abolished in a reorganization of the territories administered by the German Democratic Republic (Communist East Germany), the ''Land'' Brandenburg was restored in the prelude to German unification in 1990.

Prime Minister of Brandenburg, 1990-current

★ Manfred Stolpe (SPD) 1990 - 2002:

★ Matthias Platzeck (SPD) 2002-current