Author of Equatiorie of the Planetis
John was born in a family of farmers. In England, about a year c.1350, his house is about two miles from the Cathedral of St Albans Abbey.
Later, around the 1360s-1370s, he was ordained as a priest at the temple.
c.1380 moved to the Cathedral in Tynemouth (Tynemouth)
c.1383 participated in the Despenser's crusade, a battle between Bishop Henry le Despenser of England and Antipop Clement VII. The British side supported Pope Urban VI from Rome. France backs Seventh Anti-Pope Clement
In this war, the British lost and retreated their troops.
c.1393 began writing the Equatorie of the Planetis, which was used to create equatorium, a device that was used to find its own star coordinates.
c.1397 ended his life, presumably John was back in St. Albens.
1951 Derek de Solla Price discovered the Equatorie of the Planetis that John wrote, again in Cambridge after the document was long forgotten.
1955 Cambridge University published The Equatorie of the Planetis.
In 2020, Seb Falk, a historian at Cambridge University, wrote the book The Light Ages, which tells the history of Westwick and many other 14th-century scientists, whom Falk claimed that 14th-century Britain was not as dark ages as understood, claiming that these scientists were conceived by religion.