Frederick IV of HohenstaufenThe House of Hohenstaufen was a dynasty of German kings in the High Middle Ages, lasting from 1138 to 1254. Three of these kings were also crowned Holy Roman Emperor. In 1194 the Hohenstaufens also became Kings of Sicily...
(1145–1167) was
duke of SwabiaThe following is a list of Dukes of Swabia in southwest Germany.Swabia was one of the five stem duchies of the medieval German kingdom, and its dukes were thus among the most powerful magnates of Germany. The most notable family to hold Swabia were the Hohenstaufen, who held it, with a brief...
, succeeding his cousin,
Frederick BarbarossaFrederick I Barbarossa was a German Holy Roman Emperor. He was elected King of Germany at Frankfurt on 4 March 1152 and crowned in Aachen on 9 March, crowned King of Italy in Pavia in 1155, and finally crowned Roman Emperor by Pope Adrian IV, on 18 June 1155, and two years later in 1157 the term...
,
Holy Roman EmperorThe Holy Roman Emperor is a term used by historians to denote a medieval ruler who, as German King, had also received the title of "Emperor of the Romans" from the Pope...
, in 1152.
He was the son of
Conrad III of GermanyConrad III was the first King of Germany of the Hohenstaufen dynasty. He was the son of Frederick I, Duke of Swabia, and Agnes, a daughter of the Salian Emperor Henry IV.-Life and reign:...
and his second wife
Gertrude von SulzbachGertrude of Sulzbach was German Queen . She was the second wife of Conrad III of Germany.-Family:...
and thus the direct heir of the crown, had there been true heredity. However, on his death bed, Conrad III allegedly advised the only two persons present, his nephew Frederick Barbarossa and the bishop of Bamberg, to nominate Frederick Barbarossa; and handed the Imperial insignia to him.
Barbarossa wasted no time in getting the Bavarian clerics to endorse him, and had the archbishop of Cologne convene a hurried
ReichstagThe Imperial Diet was the Diet, or general assembly, of the Imperial Estates of the Holy Roman Empire.During the period of the Empire, which lasted formally until 1806, the Diet was not a parliament in today's sense; instead, it was an assembly of the various estates of the realm...
. There the electors of the Empire (minus their "
primus inter pares",
Henry I, Archbishop of MainzHenry was archbishop of Mainz from 1142 to 1153.In his early years as archbishop he was assisted by Anselm of Havelberg. He supported Friedrich von Staufen as successor to Konrad III of Germany....
, the archbishop of Mainz, an ally of the Pope) elected Frederick Barbarossa to be King, instead of his six-year-old cousin Frederick. The younger man became Duke of Swabia instead.
Frederick participated in Barbarossa's campaigns in Italy, becoming one of the many casualties of the Imperial army. He succumbed to disease after occupying
RomeRome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...
in 1167. Barbarossa then gave Swabia to his three-year-old son,
Frederick VFrederick V of Hohenstaufen was duke of Swabia from 1167 to his death. He was the eldest son of Frederick III Barbarossa and Beatrice I, Countess of Burgundy.-Ancestry:-See also:*Dukes of Swabia family tree...
.
Marriage
Frederick IV married
Gertrude of BavariaGertrude of Bavaria and Saxony was a German noble, a duchess of Swabia as the spouse of Frederick IV, Duke of Swabia, and a Danish Queen consort as the spouse of King Canute VI of Denmark....
. She was a daughter of
Henry the LionHenry the Lion was a member of the Welf dynasty and Duke of Saxony, as Henry III, from 1142, and Duke of Bavaria, as Henry XII, from 1156, which duchies he held until 1180....
and his first wife Clementia of
ZähringenZähringen is the name of an old German family that founded a large number of cities in what are today Switzerland and Baden-Württemberg. While the junior line that first assumed the title Duke of Zähringen, a cadet branch of the House of Baden, became extinct in 1218, the senior line persists and...
. They had no known children.
Gertrude survived him and married
Canute VI of DenmarkCanute VI was King of Denmark . Canute VI was the eldest son of King Valdemar I and Sophia of Polotsk.-Life:...
. She died childless.