He fought alongside the poet , Lord George Byron , during the Greek war of independence .
Her maternal grandfather Demetrio Corgialegno ( 1785 -- 1861 ) , who had settled in Florence , came from an old and rich Byzantine noble family .
grandfather fought alongside the poet , Lord George Byron , during the Greek war of independence .
Her maternal grandfather Demetrio Corgialegno ( 1785 -- 1861 ) , who had settled in Florence , came from an old and rich Byzantine noble family .