Otto von Braunschweig-Lüneburg

• 
• Born circa 1203
• Deceased on June 19, 1252, at the approximate age of 48 years

Parents

• Wilhelm Welf, Guillaume de Lunebourg (1183 - 1214)
• Helene Estridsen, Helene af Danmark (c. 1180 - 1233)

Family

• Married with Mathilde von Brandenburg (1210 - 1261), issuing
  • Adelheid
  • Agnes
  • Albrecht
  • Elisabeth ( - 1266)
  • Helene (c. 1231 - 1273)
  • Johann
  • Mathilde