GEOFFROY I de Mayenne

GEOFFROY I was born about 0915.¹   GEOFFROY I's father was UNKNOWN AUBERT and his mother was MELESINDE de MAYENNE.  His paternal grandfather was UNKNOWN GESLIN; his maternal grandparents were RUELLAN de MAYENNE and UNKNOWN AUVERT.  He was an only child.  He died in 0980.¹ 

They had a son named JUHEL I.