Portrait of Katherine FitzGerald, Countess of Desmond

Origin
Katherine FitzGerald, Countess of Desmond (c. 1504 – 1604) was a noblewoman of the Anglo-Norman FitzGerald dynasty in Ireland. English writers of the Tudor period, including Sir Walter Raleigh, helped popularise "the old Countess of Desmond" as a nickname for her, due to her longevity. One estimate placed her age at death in excess of 120 years. Another ranged as high as 140. Most likely she lived to about 100.

Effects
User will have moderate longevity but not eternal youth. Their body will recover from accidents, injuries and sickness but always ages their appearance in the process. This results in living a long life but one of sporadic healing and hyper-aged appearance.