Source: Siward and Waltheof, Earls of Northumberland, in The Yorkshire Archaeological and Topographical Journal, Vol. 4, pgs. 17, 20, 121 and 142 [See document in the Memories section]
	Description
	
		
			| Type | Valeur | 
	
	
		
			| Titre | Siward and Waltheof, Earls of Northumberland, in The Yorkshire Archaeological and Topographical Journal, Vol. 4, pgs. 17, 20, 121 and 142 [See document in the Memories section] | 
	
 
	Texte
	
		
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			| The Yorkshire Archaeological and Topographical Journal, Vol. 4, pgs. 17, 20, 121 and 142 | 
	
 
	Notes
	
		
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			| Siward and Waltheof, Earls of Northumberland, in The Yorkshire Archaeological and Topographical Journal, Vol. 4, pgs. 17, 20, 121 and 142 [See document in the Memories section] |