Magdalena Sibylla of Hesse Darmstadt
Landgravine Magdalena Sibylla of HesseDarmstadt was regent of the Duchy of Wrttemberg from 1677 to 1693, and was a prominent German composer of baroque hymns.
Magdalena Sibylla, Duchess of Wrttemberg was born in Darmstadt, the daughter of Louis VI, Landgrave of HesseDarmstadt and Duchess Maria Elisabeth of HolsteinGottorp. She was born in Darmstadt. As a child she lost her mother and came into the care of her aunt, the Queen Dowager Hedwig Eleonora of Sweden. In Stockholm, she manifested deep religious beliefs. On the occasion of a visit to the Wrttemberg crown prince William Louis she became engaged to him. They married onNovember 1673 in Darmstadt, and had the following children
Source: Wikipedia