Gerald of Wales was a Cambro-Norman archdeacon and historian who is best known for his topographical tour of Wales in 1188 and his account of that journey, the Description of Wales. He was also a prolific writer in Latin, producing works on a wide variety of topics, including theology, history, geography, and poetry. Born around 1146 in Monmouth, Wales, Gerald was of mixed Norman and Welsh descent. His father, William de Barri, was a Norman knight who had settled in Wales, and his mother, Angharad FitzGerald, was the daughter of a Welsh chieftain. Gerald was educated at a number of institutions, including the Augustinian Abbey of Gloucester and the universities of Paris and Oxford. He was ordained a priest in 1169 and later served as chaplain to Henry II, King of England. In 1188, Gerald embarked on his famous journey through Wales, which he documented in the Description of Wales. The work provides valuable insights into the country and its people in the 12th century. Gerald died in 1223 and was buried in the Abbey of St. David in Wales
https://www.historic-cornwall.org.uk/the-life-and-times-of-gerald-of-wales/