| |  1364 - 1434  (70 years) 
 
 
 
	
Generation: 1
Generation: 2
 Generation: 3
| 3. | Mary G. | Children: 
 
1. John Haydon was born in 1364 in Woodbury, Devonshire, England; died in 1434 in Woodbury, Devonshire, England. Henry Haydon was born in 1367.  | 
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 Generation: 4
| 5. | Sibilla was born in 1316 in England. | 
 
 Generation: 5
 Generation: 6
 Generation: 7
| 33. | Joan Gerard | Children: 
 
16. Robert de Heydon was born in 1260 in Woodbury, Devonshire, England; died in 1323 in Woodbury, Devonshire, England.  | 
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 Generation: 8
| 65. | Isabel More | Children: 
 
32. John de Heydon was born in 1244 in Heydon, Norfork, England; died in 1294 in Heydon, Norfork, England. William de Heydon, Jr. was born in 1246 in Heydon, Norfork, England; died in 1307 in Heydon, Norfork, England.  | 
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