Archbishop Pedro Cortés y Larraz wrote in his book Descripción Geográfico-Moral De La Diócesis de Guatemala (Moral and geographic description of Guatemala Diocesis) that, after the Jesuits were expelled from the Spanish colonies in 1767, they left behind a rich hacienda in the area where the modern Fraijanes municipality stands.

[3] These priests earned the respect and love of the people from the area and, in 1860, the region was renamed "Frailes Juanes" in their honor.

In 1646, Fraijanes had been given to the Society of Jesus to establish a doctrine; there is no religious evidence left in the ruins, making it difficult to assign them to a regular order in particular.

[3] Another version suggests that the ruins are from a rich Spanish hacienda and base the assumption on the presence of a tunnel that connects the main residence to a small church.

Eventually, loneliness drove him mad and turned into a terrible cannibal who tormented the nearby settlements until a peasant killed him.

[6] The largest population centers are, in order: Fraijanes has a subtropical highland climate (Köppen: Cwb).

The municipality is organized into the following divisions: In the decades prior to 2010, the economy was based mostly on agriculture, known especially for the cultivation of coffee and beans.

In Fraijanes, the cultivation of coffee has been fundamental not only from an economic point of view, but also from a cultural point of view, since the municipal authorities have promoted the cultivation of the grain as part of the identity of Fraijanes;[11] In the study of the coffee sector carried out by the Superintendency of Banks of Guatemala, it is established that Fraijanes is one of the five coffee production regions in Guatemala, as established by the Classification carried out by ANACAFE.

[14] Institutions called "Cooperative Institutes" also operate in the municipality, which are responsible for providing basic level education, ranging from first to third grade; These school years are completed at the end of the primary level and constitute the prerequisite to access college-level education.

The objective of these trainings is to provide lower class women with knowledge so that they can improve their economic situation.