The University of St Andrews, the third-oldest university in the English-speaking world, was founded when Antipope Benedict XIII issued a papal bull to a small founding group of Augustinian clergy.

The University of St Andrews is a public university in St Andrews, Scotland. It is the oldest of the four ancient universities of Scotland and, following the universities of Oxford and Cambridge, the third-oldest university in the English-speaking world. St Andrews was founded in 1413 when the Avignon Antipope Benedict XIII issued a papal bull to a small founding group of Augustinian clergy. Along with the universities of Glasgow, Aberdeen, and Edinburgh, St Andrews was part of the Scottish Enlightenment during the 18th century.

The English-speaking world comprises the 88 countries and territories in which English is an official, administrative, or cultural language. In the early 2000s, between one and two billion people spoke English, making it the largest language by number of speakers, the third largest language by number of native speakers and the most widespread language geographically. The countries in which English is the native language of most people are sometimes termed the Anglosphere. Speakers of English are called Anglophones.

Pedro Martínez de Luna y Pérez de Gotor, known as el Papa Luna or Pope Luna, was an Aragonese nobleman who was antipope with the regnal name Benedict XIII during the Western Schism.

A papal bull is a type of public decree, letters patent, or charter issued by the pope of the Catholic Church. It is named after the leaden seal (bulla) traditionally appended to authenticate it.