Prince Francis Joseph Leopold Frederick Teck is my 11th cousin twice removed.
You → Elza Dzelvite (Grahpe,Grāpe) (your mother) → Jahn Grahpe (her father) → Baron Arnold Julius von Vietinghoff-Riesch (his father) → Carl Arnold von Vietinghoff (his father) → Reinhold Johann Peter von Vietinghoff (his father) → Augusta Christiane Isabella Elisabet von Vietinghoff (his mother) → Christina Sophie von Rosen (her mother) → Johann Gustav von Rosen, a. Kiekel (her father) → Georg Gustav von Rosen (his father) → Elisabeth von Rosen (his mother) → Baroness Regina Maria Catharina von Khevenhüller (her mother) → Regina von Eck (her mother) → Anna Maria Reichsfreifrau von Dietrichstein zu Finkenstein, Hollenburg u. Thalberg (her mother) → Barbara von Starhemberg (her sister) → Elisabeth, Freiin von Tschernembl (her daughter) → Freiin Anna Barbara von Schönburg-Penig (her daughter) → Anna Elisabeth Colonna von Völs (her daughter) → Eleonore Cratz von Scharffenstein (her daughter) → Georg Ludwig, Graf zu Solms-Rödelheim (her son) → Katherine Polyxena zu Solms-Rödelheim und Assenheim (his daughter) → Caroline Felicitas von Leiningen-Langsberg-Heidesheim, Fürstin von Nassau-Usingen (her daughter) → Princess Caroline of Nassau-Usingen (her daughter) → Auguste Wilhelmine Luise von Hessen-Kassel, Duchess of Cambridge (her daughter) → Mary Adelaide Wilhelmina Elizabeth of Cambridge, Princess, Duchess of Teck (her daughter) → Prince Francis Joseph Leopold Frederick Teck (her son)