"A Death Eater; brother of Rodolphus Lestrange (GF30, OP6). Rabastan and his brother Rodolphus were captured by the Ministry of Magic after their attack on the Longbottoms (November or December 1981) and given a life sentence in Azkaban (GF27, GF33); however, they escaped when the Dementors turned against the Ministry in January 1996 (OP25). [Taken from the HP Lexicon.]"
They all thought they knew me. Who I was; who I am.
How wrong they all were...
Rabastan Lestrange is from the Harry Potter book series by JK Rowling/Scholastic/Warner Bros/etc., and is canon [or, at the very least, compliant up to and including] as of Book Seven ["Deathly Hallows"], considering he's now a werewolf [thanks a whole fucking lot, Rodolphus].
He appears in milliways_bar [lives there, practically], from which no profit [other than enjoyment—and that'll never pay the bills] is being made.
And if you're wondering, his PB is Jackson Browne and various animals.