Sir John Heydon

Peerage person ID=26901

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The conversation starts anyway — post the first discussion above.

Peerage person ID=26901

Not who you're looking for? Others named Sir John Heydon: English Royalist military commander and mathematician

Nothing published yet

The conversation starts anyway — post the first discussion above.

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Not who you're looking for? Others named Sir John Heydon: English Royalist military commander and mathematician