John Spencer-Churchill, 7th Duke of Marlborough is your first cousin thrice removed's wife's sister's husband's uncle's wife's first cousin's wife's first cousin once removed.
You
→
Miriam Adams
your mother
→
Robert Palmer
her father
→
George Palmer
his father
→
Charles Palmer
his father
→
George Palmer
his brother
→
Alfred Palmer
his son
→
Katie Palmer
his wife
→
Ethel Watson-Munro
her sister
→
Machell Watson-Munro
her husband
→
Jessie Watson (Dobson)
his mother
→
Edward Hill Dobson
her brother
→
Lucy Dobson
his wife
→
Hon. Marcia Whittington
her mother
→
Georgiana Lloyd-Anstruther
her sister
→
Lt.-Col. Robert Lloyd-Anstruther
her son
→
Gertrude Lloyd-Anstruther
his wife
→
Honorable Gertrude FitzRoy
her mother
→
Louisa Duncombe, Baroness Feversham of Duncombe Park
her mother
→
Jane Spencer-Churchill (Stewart), Duchess of Marlborough
her sister
→
John Spencer-Churchill, 7th Duke of Marlborough
her son
_
Lord Randolph Henry Spencer Churchill
his son
_
Sir Winston Churchill,PM of the UK
