Complex sentence: After her death her parents destroyed the bulk of her writings, however, Leo Skir, a friend, had 83 of her poems in his possession at the time of her death, and saw to their publication.
Split into simpler sentences: After her death her parents destroyed the bulk of her writings. However, Leo Skir, a friend, had 83 of her poems in his possession upon the time of her death, and saw to their publication.