portemus

A portemus is a type of portable altar or shrine, historically used in the Catholic Church. These objects were designed to be carried, allowing for the celebration of Mass or other religious services in temporary locations, such as during military campaigns, in remote areas, or in private homes.

The construction of a portemus could vary significantly. Some were simple wooden boxes, while others were more elaborate, crafted from precious metals like silver or gold and adorned with intricate carvings, enamel work, or gemstones. They typically contained a consecrated altar stone or a relic, which was essential for the valid celebration of the Eucharist. The size was generally small enough to be carried by one person, often a priest or a deacon.

The use of portemuses declined over time, particularly with the standardization of church buildings and liturgical practices. However, they remain important artifacts for understanding the history of Christian worship and the mobility of religious ceremonies. Examples of portemuses can be found in various museum collections and ecclesiastical treasuries, offering a glimpse into devotional practices of the past.