Complex sentence: The latter, which also served as a brothel, was owned and managed by Dollie Kezer, who before her arrival in Woodward, worked at some of Denver, Colorado's most famous brothels and was known to have attended lavish parties thrown by Horace Tabor.
Split into simpler sentences: The latter, which also served as a brothel, was owned and managed by Dollie Kezer. Before her arrival in Woodward, she had worked at some of Denver, Colorado's most famous brothels and was known to have attended lavish parties thrown by Horace Tabor.