Maria Antonia of Saxe-Weimar was a German princess born in 1797. She was the daughter of Karl August, Grand Duke of Saxe-Weimar and Maria Pavlovna of Russia. In 1817, she married Duke Ernst I of Saxe-Coburg and Gotha, strengthening ties between their noble families. Throughout her life, Maria Antonia was known for her cultural contributions and support of the arts. She played a significant role in the development of Saxe-Coburg and Gotha, promoting education and social welfare. Maria Antonia passed away in 1862, leaving a legacy of cultural enrichment in her region.