Complex sentence: Mariedal and Lindholmen estates served as her dower estates, the former being her personal residence, but she initially also kept control of her son's estate Stola, he being also absent from his estates like his father because of his career.
Split into simpler sentences: Mariedal and Lindholmen estates served as her dower estates, the former being her personal residence. She initially also kept control of her son's estate Stola, he being also absent from his estates like his father because of his career.