Njál Thorgeirsson is a central character in the Icelandic saga known as Njáls saga. He is depicted as a wise and respected man, known for his legal knowledge and ability to resolve disputes peacefully. Njál's character embodies the values of honor and loyalty, which are significant themes in the saga. Njál is married to Bergthora, and they have several children. The saga chronicles the events of their lives, including conflicts and feuds that arise in their community. Njál's tragic fate highlights the consequences of vengeance and the complexities of human relationships in medieval Iceland.