Individual

Go to List of Family Names Go to List of People    < Previous Next >

Birth:          ABT 1050 of Hohenstauffen, Swabia, Bavaria
Death:          6 Apr 1105 
Burial:         Lorch

Notes
built the castle at Hohenstaufen
founded the monastery at Lorch
https://en.wikipedia.org/wiki/Frederick_I,_Duke_of_Swabia
Frederick I (c. 1050 – before 21 July 1105) was Duke of Swabia from 1079 to his 
death, the first ruler from the House of Hohenstaufen (Staufer).
Life[edit]

He was the son of Frederick of Büren (c.1020–1053), Count in the Riesgau and 
Swabian Count Palatine, with Hildegard of Egisheim-Dagsburg (d. 1094/95), a niece of 
Pope Leo IX and founder of the Abbey of Saint Faith in Schlettstadt, Alsace. When 
Frederick succeeded his father, he had Hohenstaufen Castle erected on the 
eponymous mountain in the Swabian Jura range, which became the ancestral seat of 
the dynasty. He also founded a Benedictine abbey at the site of former Lorch Castle 
about 1100. By his mother he ruled over large Alsatian estates around Schlettstadt 
and Hagenau.

When during the Investiture Controversy the Swabian duke Rudolf of Rheinfelden was 
elected anti-king to King Henry IV of Germany, Frederick remained a loyal supporter of 
the ruling Salian dynasty. In turn Henry vested him with the Swabian ducal dignity in 
1079 and also gave him the hand of his seven-year-old daughter Agnes of Waiblingen. 
Contested by Rudolf's son Berthold of Rheinfelden and Berthold of Zähringen, 
Frederick only ruled over the northern parts of the Swabian duchy down to Ulm and 
the Danube River. Finally in 1098, he and Berthold of Zähringen reached a 
compromise, whereby his rival confined himself to the title of a "Duke of Zähringen".

In the last years of his reign, Frederick was able to expand the Hohenstaufen 
territories northwards, when he assumed the office of a Vogt (reeve) of Weissenburg 
Abbey and the Bishopric of Speyer in Rhenish Franconia.

Marriage and issue[edit]

About 1086/87, Frederick married Agnes, daughter of Emperor Henry IV.[1] They had 
several sons and daughters, amongst whom were:
Frederick II (1090–1147), succeeded as Duke of Swabia in 1105, father of Emperor 
Frederick Barbarossa
Conrad III, King of Germany (1093–1152), elected King of the Romans in 1138
Berta of Boll (d. before 1142), married Adalbert of Ravenstein, Count of Elchingen, 
their daughter Liutgard married Conrad, Margrave of Meissen
Heilika, who married Frederick III of Pettendorf-Lengenfeld-Hopfenche, their daughter 
Heilika of Pettendorf-Lengenfeld married Otto IV, Count of Wittelsbach
Gertrud, married Hermann III of Stahleck, Count Palatine of the Rhine

After Frederick's death, Agnes secondly married the Babenberg margrave Leopold III 
of Austria in 1106. Both are buried in Klosterneuburg Monastery.

Parents
VON BUREN Frederick (Friedrich) (1015 - 1094)
VON BAR-MOUSSON OF SWABIA Hildegarde (ABT 1028 - 1094)

Siblings
____ Frederick (Friedrich) I (ABT 1050 - 6 Apr 1105)

Marriage To OF FRANCONIA Agnes (ABT 1073 - 24 Sep 1143)
    m. 1089 her 1st

Notes

Parents
OF FRANCONIA Henry (Heinrich) IV (11 Nov 1050 - 7 Aug 1106)
OF MAURIENNE (OF LORRAINE) Bertha (21 Sep 1051 - 27 Dec 1087)

Children by OF FRANCONIA Agnes ABT 1073 - 24 Sep 1143
VON HOHENSTAUFEN Friedrich II (1090 - 6 Apr 1147)

Produced by Fzip 1.7 6/20/2017