Fate/Zero

Summary:
Taking place 10 years before the events of Fate/stay night, this series chronicles the events of the Fourth Holy Grail War.

Songs:

Opening Theme:

#1: "oath sign" by LiSA (eps 1-13)

Ending Theme:

#1: "MEMORIA" by Aoi Eir (eps 1-13) 

Related Links:

Official website (Japanese) - http://www.fate-zero.jp/

Wikipedia - http://en.wikipedia.org/wiki/Fate/Zero

Anime News Network - http://www.animenewsnetwork.com/encyclopedia/anime.php?id=12376