Frederick I, Duke of Swabia
Frederick I (* 1050, † 1105 before July 21 ) from the House of Hohenstaufen was since 1079 Duke of Swabia. His father was Friedrich von Buren, his mother Hildegard of Eguisheim - Dabo, daughter of Count Gerhard I. In his reign the rise of Hohenstaufen fell to the Duke family in Swabia. Considered together with Peter as the founder of Lützelburg the monastery of Saint Walburga. They were supported by his brother Otto von Bueren.
Probably Frederick held the earldom before the Duke collection. Even when Count Frederick I began with the expansion of Hohenstaufen power. He built a castle on the summit of Mt Hohenstaufen, which became the headquarters and the namesake for the family. A near Lorch (Württemberg ) to be adopted castle was converted in 1100 into a Benedictine monastery (Kloster Lorch ), which served as the home monastery of the Hohenstaufen from that date.
However, the family possessions of the family at this time seems still to have been slight. Presumably, it was limited to the Staufer land around the Hohenstaufen and the obtained by Hildegard possessions in Alsace in and around Schlettstadt with the Hohkönigsburg and in Haguenau.
But the decisive event in Frederick lifetime was the transfer of the title of duke of Swabia in Regensburg Easter 1079th During a noble rebellion against Henry IV of renegade Rudolf of Rheinfelden Staufer belonged to the royalist minority. Beginning of 1079 had been elected by the noble opposition to the Duke of Swabia, Rudolf's son Berthold of Rheinfelden. In turn, Henry awarded the title at Easter to Frederick I. and became engaged on March 24, also in Regensburg its still not seven year old daughter Agnes with him ( the marriage was in 1086 or 1087 closed). In the following years, nobody was able to prevail by two dukes. After Henry had 1097 Berthold of Zahringen, the successor of Rudolf of Rheinfelden, reconciled, persisted cleavage of Swabia. Friedrich was his office just to the north of Swabia actually exercise.
The expansion of Hohenstaufen power base he operated mainly in the north. In the Palatinate, he was in his last years domination by the upper bailiwick of the monastery of White Castle and the Bishopric of Speyer into a major regional power factor. Thus, the Hohenstaufen territory approached the Salian Franks goods in the Rhine. In the south, Frederick brought only to Ulm significant property under his control, beyond the Danube only occasional float.
During the Italian expedition of Henry IV and the associated absence of the ruler from the northern part of the empire Friedrich was there the supreme commander of the imperial side.
In addition to the sons of Duke Frederick II and Conrad III. is a daughter Gertrud detectable, who married Hermann von Stahleck. Bühler and Fischer ( see references ) have a daughter Bertrada ( Berta ) (c. 1088/89, according to 1120/vor † 1142 ) (∞ I Adalbert von Ravenstein, Count of Elchingen and Irrenberg, II, Count Heinrich von Aichelberglifte, Daughter of I Luitgard is married to Konrad von Wettin, Margrave of Meissen ) to. Information about other children who did Hans Martin Decker -Hauff by counterfeit of him Lorcher sources have been found to be fancy products.