Gersuinda
Gersuinda was a concubine of the emperor Charlemagne , with whom he was in a relationship after the death of his last legitimate wife , Luitgard ( died June 4 , 800 ) . 
<triplet> Gersuinda <subj> Charlemagne <obj> unmarried partner <triplet> Charlemagne <subj> Gersuinda <obj> unmarried partner