What is a separate family group that descended from jacob

The correct answer is tribe.
According to the Bible, Jacob had twelve son with his two wives, Leah and Rachel, and two concubines, Zilpah and Bilhah. These twelve sons had families of their own, all of which were descended from the main patriarch, Jacob, and are referred to as tribes. There were 12 tribes, led by the 12 sons: Reuben, Simeon, Levi, Judah, Issachar, Zebulun, Dan, Naphtali, Gad, Asher, Joseph, and Benjamin. 

Question:

What happened to the near city of tours in 711?

Charles Martel was a french general that fought a huge army of spanish moors that were trying to spread the religion of Muslim into Western Europe.