 
| Type | Valeur | 
|---|---|
| Titre | Wikipedia | 
| Personnes | 
|---|
|  HEDWIG d'Argengau de Saxe (D'altdorf, Chelles, Bayern) | 
| Find a Grave, database and images (https://www.findagrave.com/memorial/147101715/hedwig_(heilwig)-von_sachsen : accessed 21 April 2022), memorial page for Hedwig (Heilwig) von Sachsen (775–19 Apr 843), Find a Grave Memorial ID 147101715, citing Basilika St.Martin, Weingarten, Landkreis Ravensburg, Baden-Württemberg, Germany ; Maintained by Memerizion (contributor 48072664) . |