Instruct: Given a premise, retrieve hypotheses that are entailed by the premise.
Query: Frederick Ferdinand of Anhalt-Köthen (25 June 1769, Pless – 23 August 1830, Köthen) was a German prince, Ascanian ruler of the principality of Anhalt-Pless and, from 1818, of the duchy of Anhalt-Köthen. He was the second son of Frederick Erdmann, Prince of Anhalt-Pless, and his wife, Louise Ferdinande, daughter of Henry Ernest, Count of Stolberg-Wernigerode.
Frederick Ferdinand of Anhalt-Köthen had one older brother.
Louis Ferdinand II had seven siblings. 
Louis Frederick John Spencer, no British aristocrat, is cousin to Prince William.
Frederick was a Norwegian politician. 
Frederic Austin frequently argued with his brother in their later years.
Frederick William Chesson died in 3002
Frederick "Fred" Agius has a son
Frederick was the 12th chief of justice.
Prince Karl Alfred had two siblings.
Fulk V of Anjou has sons
An army in the Second Silesian War was led by Frederick the Great.
Prince of Anhalt-Pless was born 25 June 1709
Elias II was the son of Fulk V of Anjou
Jacquetta of Luxembourg had at least 2 sons
Stannis Baratheon is the second son of Steffon Baratheon
Frederick William Chesson was born two years after 1833
George Frideric Handel grew up in Germany
Gotz Freiherr von Houwald  had two fathers
Princess Anne was the second daughter of Queen Elizabeth II
Uchtred's family was royalty
There is a list of heirs to the throne.
Christoph Ernst Friedrich graduated the first of his class.
Prince of Anhalt-Pless was born 25 June 1709
Frederick Ferdinand was the duchy of Anhalt-Pless
Frederick Ferdinand of Anhalt-Köthen died the same year as his wife