Orloff, the name of two brothers, Russians: Gregory, the favourite of Catherine II. (1734-1783), and Alexis, a man remarkable for his stature and strength, who murdered Peter III. and was banished by Paul I. (1737‒1809).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Orleans, Dukes of * Orme, Robert