Complex sentence: Subsequently his sister, Anne zu Salm-Krautheim, repeatedly promised him his half of the valuable estate and sent him money from time to time; after her death, Gallitzin received little or nothing more.
Split into simpler sentences: Subsequently his sister, Anne zu Salm-Krautheim, repeatedly promised him his half of the valuable estate and sent him money from time to time. Nonetheless, after her death, Gallitzin received little or nothing more.