Patricia Routledge is one of the actors I most admire. A Woman of No Importance and the later Alan Bennet Talking Heads monologue A Lady of Letters, were among my many inspirations as I studied performing arts.
The (unconnected Ladies of Letters on Radio 4 with Prunella Scales still makes me chortle, and her portrayal of Hyacinth Bucket (pronounced "Bouquet") was, of course, just sublime.