Erwin I Tonna 
Erwin I was born about 1070 in Of Grafentonna,Sachsen-Coburg-Gotha,Thuringia.1 He died after 1116.
Erwin I and Helenburg Von were married in a religious ceremony in Grafentonna,Sachsen-Coburg-Gotha,Thuringia. They had three sons and a daughter, named Ernst I, Count Of, Lambert I Von, Bruning, Count Of and Beatrix, Countess Of.
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Children
Ernst I, Count Of Gleichen-Tonna
Ernst I, Count Of was born about 1096 in Of Grafentonna,Sachsen-Coburg-Gotha,Thuringia. He died on December 29th, 1152.
Lambert I Von Tonna
Lambert I Von was born about 1098 in Tonna,Sachen-Coberg,Thuringen. He died on October 3rd, 1149 in Erfurt,Sachsen,Prussia.
Bruning, Count Of Tonna
Bruning, Count Of was born about 1100 in Of Grafentonna,Sachsen-Coburg-Gotha,Thuringia. He died on April 3rd, 1149.
Beatrix, Countess Of Tonna
Beatrix, Countess Of was born about 1101 in Of Grafentonna,Sachsen-Coburg-Gotha,Thuringia. She died on August 20th, 1120.
1 "Pedigree Resource File - CD-Rom" @ Compact Disc #19 Pin #203552
Further sources/citations:
Ancestral File (R), "Genealogical Research of Kirk Larson"
Further sources/citations:
Ancestral File (R), "Genealogical Research of Kirk Larson"
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