Frederick Robert St John died in 1923.
Frederick Robert St John was born in 1831.
Frederick Robert St. John has written: 'Reminiscences of a retired diplomat'
Frederick St John Newdigate Barne died in 1898.
Robert William St. John died in 2003.
Frederick St John Newdigate Barne was born in 1842.
Robert William St. John was born in 1902.
Frederick de St Croix Brecken died in 1903.
Robert of St. Albans died in 1187.
Frederick St. John Gore has written: 'Lights & shades of hill life in the Afghan and Hindu highlands of the Punjab' -- subject(s): Description and travel
Frederick Baugh has written: 'The story of the Parish Church of St John the Evangelist, Kate's Hill, Dudley' -- subject(s): Church of St John the Evangelist (Dudley)
There are at least 10 saints named Frederick so you need to be more specific.
Robert St Leger Fowler died in 1925.