Eberhard I, Graf von Sponheim

He was an East Frankish Count. He was probably established in southeastern Germany by the Emperor Conrad II, and became Count of Lisbon.

http://en.wikipedia.org/wiki/Siegfried_I,_Count_of_Sponheim

About his parents little is known. It has been noticed however, that his father was Eberhard I of Sponheim (d. 1044) and that he therefore had brothers named Friedrich of Sponheim (1022–1058) and Eberhard II of Sponheim.[citation needed]

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Everhard was an east Frank.

See http://www.e-familytree.net/F248/F248120.htm for more information,

speculative research of Rob Salzman (http://www.e-familytree.net/surnames.htm).

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http://freepages.genealogy.rootsweb.com/~lzrslong/b1449.htm#P182042

I EBERHARD Graf Von Sponheim7,368,370 died in 1065.368 Parents: ARIBO Pfalzgraf In Bayern and Adela Von BAYERN.