Robert de Quincy was a notable figure in the 12th century, primarily recognized for his role as a historian and chronicler. He is best known for his writings that documented the events of his time, particularly those related to the Crusades and the Norman Conquest. His works provide valuable insights into the political and social dynamics of medieval Europe. De Quincy was also associated with the Plantagenet dynasty, serving as a loyal supporter and advisor. His contributions to historical literature have made him an important source for understanding the complexities of the era, influencing both contemporary and later historians in their studies of medieval history.