Rutebeuf or Rustebeuf, a celebrated trouvère of the 13th century, of whom little is known save that he led a Bohemian life in Paris and was unfortunate in his marriage; his songs, satires, &c., are vigorous and full of colour, and touch a note of seriousness at times which one hardly anticipates.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Rustchuk * Ruthenians