Catherine is out. There have been too many
Catherine people and variants for too long. Pity: it must have been lovely once.
That leaves two monosyllables. OK ...
Anne is a family name: my grandmother, a cousin, me and my daughter. So I'll give it a break!
And
Jane is lovely, serene and understated.
Jane FelicityJane RosamondJane Harriet AnneJane Dinah Eloise