Duke Frederick I Von Hohenstaufen de Swabia
Frederick I Von Hohenstaufen was born in 1050.  He died at the age of 55 on April 6th, 1105.

 Bertha Princess of Germany
Bertha Princess of was born in 1076.  She died at the age of 67 on September 24th, 1143.

 Duke Frederick II Hohenstaufen de Swabia
Frederick II Hohenstaufen was born in 1090 in Hohenstaufen, Swaben, Bavaria.  He died at the age of 57 on April 4th, 1147.