Bereishit (Genesis) chapter 26 and Genesis 36 state different names for the wives of Esav (Esau). What are the different explanations to this problem? (Biblical Criticism explains this as two different traditions.) What are the traditional explanations to the problem?
There are basically two lists of wives and each one contains 3 names. Traditional sources differ on exactly how to answer the contradiction, with the opinions ranging from Esau having 3,4,5, or 6 wives all together. See http://jbq.jewishbible.org/assets/Uploads/424/jbq_424_Kleinwivesofesau.pdf for an article which summarizes these views.