Rob·ert I 1 
(rŏbərt) Known as "Robert the Devil." Died 1035.
(rŏbərt) Known as "Robert the Devil." Died 1035. Duke of Normandy (1027-1035) who named as his heir his illegitimate son William, the future William the Conqueror.
- ferroalloy
- ferroconcrete
- ferrocyanide
- ferroelectric
- ferroelectricity
- ferrofluid
- Ferrol
- ferromagnesian
- ferromagnet
- ferromagnetic
- ferromagnetism
- ferromanganese
- ferrosilicon
- ferrotype
- ferrous
- ferrous oxide
- ferrous sulfate
- ferrous sulfide
- Ferruccio Benvenuto
- ferruginous
- ferrule
- ferry
- ferryboat
- fertile
- Fertile Crescent