Complex sentence: Keeping a low profile in the 1950s and the 1960s Filatova aspired to a political role of her own in her later years relying on the authority of her husband to subtly influence the Mongolian political landscape.
Split into simpler sentences: Keeping a low profile in the 1950s and the 1960s, Filatova aspired to a political role of her own in her later years. She relied on the authority of her husband to subtly influence the Mongolian political landscape.