This article is the continuation of another previously published, referring to the interpolations perceived by the Romanists in the sources on the subject of Excusatio in the position of a tutor. After finalizing the analysis of this issue, it delves into the differences between the position of a guardian and curator of the minor, noting that both institutions ended up identifying themselves in the postclassical and Justinian period, and therefore the excuses were applicable to both figures. Once these aspects have been examined, the study of the causes of exoneration for the exercise of guardianship and curatorship are seen in depth, since that is the core of our work. There will be a third article including the causes that, for reasons of space, do not appear here as well as the conclusions.