Which preposition to use with unchronicled

amid Occurrences 1%

Thus, unchronicled amid the battles and the sieges, there broke out another war, a war of individuals, with foul murder upon the one side and brutal reprisal on the other.

to Occurrences 1%

All the orgy of Louvain was repeated here, unchronicled to our people at home.

Which preposition to use with  unchronicled