Claim: Keturah was divorced from the common patriarch of the three Abrahamic religions.
Evidence: Keturah was a concubine and wife of the Biblical patriarch Abraham.
The Patriarchs -LRB- אבות Avot or Abot , singular אב Ab or Aramaic : אבא Abba -RRB- of the Bible , when narrowly defined , are Abraham , his son Isaac , and Isaac 's son Jacob , also named Israel , the ancestor of the Israelites.