Stella Towler, who died 21 March, 2021, was a scion of the Prideaux-Brune landed family, and was descended from the St Aubyn baronets [now the Barons St Levan].
She was born 'Stella Prideaux-Brune' at Battle, Sussex, in 1931. Mother's maiden name St Aubyn.
She was a daughter of Hildegarde Ada St Aubyn [b 14 July, 1894-died Apr 1979]. Burke's Peerage doesn't show a marriage for Hildegarde, but her death was registered, in Oxford in 1979, as 'Hildegarde Ada Brune'.
She married in 1964, Eric William Towler, by whom she had issue.