• Born: 1180
• Married: 1 Jun 1196
• Died: 29 Jul 1201, Château De Poissy, Poissy, Île-de-France

  Research Notes:

The Chronicle of Alberic de Trois-Fontaines records the marriage in 1196 of "Philippus [rex]" and "Mariam filiam ducis Meranie et marchionis Histrie". The Gestis Philippi II Augusti records the marriage in Jun 1196 of "Philippus rex" and "Mariam filiam ducis Meranie et Boemie marchionisque Hystrie". The De Fundatoribus Monasterii Diessenses names "Agnes regina Francie…filia Pertoldi quondam ducis Meranie" when recording her death, in 1250 which is incorrect. The Balduini Ninovensis Chronicon records the third marriage of "Philippus [rex]" and "filiam Bertoldi ducis de Durenbon", recording that she died giving birth to her third child. Her children were recognised as legitimate by Pope Innocent III 2 Nov 1201. The Chronicle of Alberic de Trois-Fontaines records the death in 1201 of "mater…Philippus puer et Maria soror eius" and her burial "iuxta Melentam in ecclesie beati Corentini". The necrology of Diessen records the death "Kal Aug XIII" of "Chuniza Agnes regina Francie filia ducis Meranie Berhtoldi". The necrology of the abbey of Saint-Denis records the death "XIV Kal Aug" of "Agnes regina Francie". ¹