Measuring less than a metre wide and just over half a metre tall, it is a modest object in physical terms, yet it carries a Latin inscription that fixes two specific lives to a specific moment: May 1670, when Brothers Christopher Walsh and Ambrosio Madden were commemorated here in stone.

Portumna Friary was a Dominican house in County Galway, and by 1670 it existed in a landscape already shaped by decades of plantation, dispossession, and religious suppression. The Dominicans, like other mendicant orders, faced persistent pressure throughout the seventeenth century, and commemorating the dead in Latin within a friary sacristy, the room adjoining the chancel where vestments and sacred vessels were kept, carried a certain quiet defiance. The names Walsh and Madden are both well-attested Connacht surnames of the period, and the memorial's placement in the sacristy rather than the main church suggests an interior, communal act of remembrance rather than a public display of patronage. Wall monuments of this kind, framed inscribed tablets set flush into masonry, were a common form of clerical commemoration across early modern Ireland, combining the permanence of carved stone with the economy of a contained format.