Complex sentence: Margareta Hedvig Alströmer, as married "Cronstedt af Fullerö", (1763-1816), was a Swedish (amateur) painter, singer and noble, and a member of the Royal Swedish Academy of Arts and the Royal Swedish Academy of Music.
Split into simpler sentences: Margareta Hedvig Alströmer, as married "Cronstedt af Fullerö", (1763-1816), was a Swedish (amateur) painter, singer and noble. She was a member of the Royal Swedish Academy of Arts and of the Royal Swedish Academy of Music.