So where to start? The most obvious ones have to be:

When did she live? Where did she live?

They  seem as good a place as any.  We might be able to date her by dress and fashion unless of course she dressed up specially for the portrait.

As for where, well we have two main possibilities. The miniature might have been an heirloom from my Grandmother in Czechoslovakia. Alternatively she might be one of a collection of miniatures my father picked up when he was stationed in Germany after the War. People were desperate for cigarettes and on several occasions, he swapped a carton of cigarettes for a miniature!

let’s take it from there then.