Perhaps you should try some spelling variations:
"belle-isle, charles lucas auguste fouque / duc de / 1684-1761" » "belle-isle, charles lucas auguste fouquet / duc de / 1684-1761", "belle-isle, charles louis auguste fouque / duc de / 1684-1761", "belle-isle, charles clubs auguste fouque / duc de / 1684-1761"
"belle-isle, charles case auguste fouque / duc de / 1684-1761" » "belle-isle, charles case auguste fouquet / duc de / 1684-1761", "belle-isle, charles ca auguste fouque / duc de / 1684-1761", "belle-isle, charles clarke auguste fouque / duc de / 1684-1761", "belle-isle, charles carter auguste fouque / duc de / 1684-1761", "belle-isle, charles calte auguste fouque / duc de / 1684-1761", "belle-isle, charles age auguste fouque / duc de / 1684-1761", "belle-isle, charles cause august fouque / duc de / 1684-1761"
"belle-isle, charles lucae august fouque / duc de / 1684-1761" » "belle-isle, charles luzar august fouque / duc de / 1684-1761", "belle-isle, charles lucas's august fouque / duc de / 1684-1761", "belle-isle, charles buchan august fouque / duc de / 1684-1761", "belle-isle, charles lucae auguste fouquet / duc de / 1684-1761", "belle-isle, charles life august fouque / duc de / 1684-1761", "belle-isle, charles june august fouque / duc de / 1684-1761", "belle-isle, charles nice august fouque / duc de / 1684-1761"

Try widening your search to All Fields.

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("belle-isle, charles lucas auguste fouque / duc de / 1684-1761") OR ("belle-isle, charles lucae august fouque / duc de / 1684-1761"))) OR ("belle-isle, charles case auguste fouque / duc de / 1684-1761")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"belle-isle, charles lucas auguste fouque / duc de / 1684-1761\") OR (\"belle-isle, charles lucae august fouque / duc de / 1684-1761\"))) or (\"belle-isle, charles case auguste fouque / duc de / 1684-1761\"))".
• Removing quotes may allow a broader search: (((( belle-isle, charles lucas auguste fouque / duc de / 1684-1761 ) OR ( belle-isle, charles lucae august fouque / duc de / 1684-1761 ))) or ( belle-isle, charles case auguste fouque / duc de / 1684-1761 )).
• Adding a wildcard symbol may retrieve word variants: (((("belle-isle, charles lucas auguste fouque / duc de / 1684-1761") OR ("belle-isle, charles lucae august fouque / duc de / 1684-1761"))) or ("belle-isle, charles case auguste fouque / duc de / 1684-1761"))*.