Complex sentence: In 1830 she married the six years younger actor Ulrik Torsslow (1801-1881), and together, they were called "Twinstars of the first order in the sky of Art" and regarded the most notable male and female stars of their generation.
Split into simpler sentences: In 1830 she married the actor Ulrik Torsslow (1801-1881), who was six years younger than her. Together they were called "Twin stars of the first order in the sky of Art" and were regarded as the most notable male and female stars of their generation.