Four or more generations of descendants of Alfred William Maitland FitzRoy, 8th Duke of Grafton (1850-1930) if they are properly linked:
1. Alfred William Maitland FitzRoy, 8th Duke of Grafton (1850-1930)
- 2. Lillian Rose FitzRoy (1876-1960)
- 2. Mary Margaret FitzRoy (1877-1966)
- 2. William Henry Alfred FitzRoy (1884-1918)
- 3. John Charles William FitzRoy, 9th Duke of Grafton (1914-1936)
- 3. Margaret Jane FitzRoy (1916-1994)
- 3. Mary Rose FitzRoy (1918-2010)
- 2. Elfrida Marie Susanna FitzRoy (1919-1920)
- 2. Cecilia Blanche Genevieve FitzRoy (1922-1974)