Complex sentence: The children of Shoe Boots were later forced into slavery with his twin sons inherited as property to his sisters, who unsuccessfully attempted to petition the council to grant emancipation and citizenship for the twins.
Split into simpler sentences: The children of Shoe Boots were later forced into slavery by heirs of his estate. His sisters inherited his twin sons as property, and they unsuccessfully petitioned the council to grant emancipation and citizenship for the twins.