ROTZ, JEAN |
France; England, fl.1540-80, MIM |
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made an elaborate compass of variation for Henry VII; developed an armillary ring sundial with sights, mounted over a compass and called by him a "differential quadrant"; his father might have been a Scot. |
Dieppe; London; Dieppe. |
Taylor 1(15); A.J. Turner 10. |
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