Duchess Helene of Mecklenburg-Schwerin sibling Paul Friedrich I, Grand Duke of Mecklenburg-Schwerin
Her father was the eldest son and heir of Frederick Francis I, Grand Duke of Mecklenburg. Her mother was a princess of Duchy of Saxe-Weimar-Eisenach. The Hereditary Grand Duke and his wife died within three years of each other. Helene's mother died in January 1816 and her father then died in 1819, leaving her older half brother Paul Frederick of Mecklenburg-Schwerin, the new Hereditary Grand Duke, and her other siblings to be raised by her grandfather, the reigning Grand Duke.
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