This is makeindex, version 2.15 [MiKTeX 21.6.28].
Scanning input file GradualeMonasterienseParsSecunda-Seque.idx....done (2 entries accepted, 0 rejected).
Sorting entries....done (2 comparisons).
Generating output file GradualeMonasterienseParsSecunda-Seque.ind....done (9 lines written, 0 warnings).
Output written in GradualeMonasterienseParsSecunda-Seque.ind.
Transcript written in GradualeMonasterienseParsSecunda-Seque.ilg.