The Patriarchal Age is the era of the three biblical Patriarchs, Abraham

Abraham

Abraham , whose birth name was Abram, is the eponym of the Abrahamic religions, among which are Judaism, Christianity and Islam...

, Isaac

Isaac

Isaac as described in the Hebrew Bible, was the only son Abraham had with his wife Sarah, and was the father of Jacob and Esau. Isaac was one of the three patriarchs of the Israelites...

 and Jacob

Jacob

Jacob "heel" or "leg-puller"), also later known as Israel , as described in the Hebrew Bible, the Talmud, the New Testament and the Qur'an was the third patriarch of the Hebrew people with whom God made a covenant, and ancestor of the tribes of Israel, which were named after his descendants.In the...

, according to the narratives of Genesis 12-50. (These chapters also contain the history of Joseph

Joseph (Hebrew Bible)

Joseph is an important character in the Hebrew bible, where he connects the story of Abraham, Isaac and Jacob in Canaan to the subsequent story of the liberation of the Israelites from slavery in Egypt....

, although Joseph is not one of the Covenantal Patriarchs).

The bible contains an intricate pattern of chronologies from the creation of Adam, the first man, to the reigns of the later kings of ancient Israel and Judah

Kingdom of Judah

The Kingdom of Judah was a Jewish state established in the Southern Levant during the Iron Age. It is often referred to as the "Southern Kingdom" to distinguish it from the northern Kingdom of Israel....

, at which point the bible makes contact with known and dateable history.