This martirologio-calendario (obituary) of the Parish of Claro has
no cover, and its initial pages are quite badly damaged. Each page
is laid out to contain five to seven days of the week; names of the
deceased whose death anniversaries were to be celebrated are listed
in spaces especially intended for this purpose. It is almost
certain that this annal replaces an older register. Individual
entries were updated later and, as can be deduced from notes in the
margins, were transferred to a new book. As a rule, the entries are
not dated, but mention of several testaments and local customs
allows for placing it in the period after the middle of the 15th
century.