Which preposition to use with unrelieved

by Occurrences 2%

It was a dull despair, a settled conviction that for her life could never have again a single charm, that her days must go on in their slow progress to the grave unlightened by one ray of sunshine, her burden carried to the end of the dreary journey unrelieved by one hour of respite.

by Occurrences 1%

The blank expansion of the leaf is not quite unrelieved by ornament, but is set off with small points, spots, and blossoms.

of Occurrences 1%

When Jesus, unrelieved of all the weight of his sufferings, returned to the grotto, he fell prostrate

Which preposition to use with  unrelieved