Question: When is the composer of film Beowulf & Grendel 's birthday?
Sentence (from "Hilmar Örn Hilmarsson"): Hilmar Örn Hilmarsson (born 23 April 1958), also known as HÖH, is a musician, an art director, and "allsherjargoðichief goði") of Ásatrúarfélagið ("the Ásatrú Association").
Relevant evidence: Yes