Could he be the father of Sigehelm, Earl of Kent, married to Elfida of Kent 896 - 944, and grandfather of Eadgifu of Kent 896 - 969?
Seen on https://gw.geneanet.org.
The connection is a hypothesis based on the similarity in names. There is no documentation to back it.
Thank you Jason. I thought so. Other sources I looked at said the ancestry of Sigehelm was unknown.