When we consider education during the 14th century, we tend to refer to the University. It is often forgotten that there existed institutions, such as cathedral schools, which dealt with the grammatical education of clergymen who were receiving the tonsure. This paper sheds light on the students of the cathedral school of Barcelona. Through the registrum ordinatorum of the Diocesan Archive, two pieces of information crucial to this research can be obtained, these are the number of students and their origins. We can therefore consider the cathedral school to be an educational institution of very notable success which, above all, offered the possibility of learning the trivium for free.When we consider education during the 14th century, we tend to refer to the University. It is often forgotten that there existed institutions, such as cathedral schools, which dealt with the grammatical education of clergymen who were receiving the tonsure. This paper sheds light on the students of the cathedral school of Barcelona. Through the registrum ordinatorum of the Diocesan Archive, two pieces of information crucial to this research can be obtained, these are the number of students and their origins. We can therefore consider the cathedral school to be an educational institution of very notable success which, above all, offered the possibility of learning the trivium for free