Do any of you historians know the birth date of Abbot Raffrefus of Farfa in Lazi

Question: Do any of you historians know the birth date of Abbot Raffrefus of Farfa in Lazio!.!?

It was sometime during the Middle ages in Italy in the town of Lazio!. He was poisened by two of his monks when he tried to enforce Benedictine law in the monastery!. (I don't understand why since all the orders practiced Benedictine law) Any help appreciated!.Www@QuestionHome@Com

Best Answer - Chosen by Asker:

http://www!.glo-con!.com/article!.php!?artic!.!.!.
Abbot Ratfredo is mentioned without many details!.

http://www!.santa-vittoria!.com/history!.ht!.!.!.Www@QuestionHome@Com