Munyonyo is located approximately 13 kilometres (8.1 mi), by road, south of the central business district of Kampala, Uganda's capital and largest city in that East African country.

The prisoners were grievously bound to each other, and were made to walk their life's final journey escorted by merciless soldiers; theirs was a brutal and soul-inspiring last pilgrimage.

On the way to Namugongo, at a lonely spot by the side of a road in Kyamula, Pontiano was martyred – he was the third Ugandan whose love of Christ outshone his desire for life itself.

After a short imprisonment, the future martyrs subsequently walked, staggered and were often dragged over a number of days until they finally reached the martyrdom site in Namugongo (3 June 1886).

The decree was signed by Cardinal Robert Sarah, Prefect of the Congregation for Divine Worship and the Discipline of the Sacraments on behalf of Pope Francis.