Final answer:
An endowed chapel is for saying masses and prayers for the souls of the founders and persons named by them to aid their journey in the afterlife, often associated with the belief in purgatory.
Step-by-step explanation:
A chapel endowed is typically established for saying of masses and prayers for the souls of the founders and often also for the souls of persons named by the founders. These spaces, such as chantry chapels, are devoted to these spiritual services to aid in shortening the time the souls spend in purgatory. Purgatory is viewed as a place where souls remain temporarily to atone for their sins before proceeding to heaven. Chapels could also hold special relics and were occasionally part of palace grounds, signifying their importance and reverence.
In the historical context, chapels endowed were also sometimes connected with sacrificial offerings, prayers, and ceremonies dedicated to specific ancestors or the patrons who commissioned the chapels. Practices included offering food for the afterlife, flowers symbolizing rebirth, and the use of incense as a divine scent, all in hope of obtaining assistance from the deceased for the living or ensuring their peace in the afterlife.