Perhaps you should try some spelling variations:
"frank stewart, duchess of lennox" » "frances stewart, duchess of lennox", "fiona stewart, duchess of lennox", "alan stewart, duchess of lennox"
"mark stewart, duchess of lennox" » "mary stewart, duchess of lennox", "mark stuart, duchess of lennox", "martin stewart, duchess of lennox"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"frank stewart, duchess of lennox\") OR (\"mark stewart, duchess of lennox\"))".
• Removing quotes may allow a broader search: (( frank stewart, duchess of lennox ) OR ( mark stewart, duchess of lennox )).
• Adding a wildcard symbol may retrieve word variants: (("frank stewart, duchess of lennox") OR ("mark stewart, duchess of lennox"))*.