- male, deceased (474)
- Flavius Valerius Leo (401-18 January 474), known in English as Leo the Thracian or Leo I, was a Byzantine emperor who ruled from 457 to 474. He was...
- male
- Ivan Grigoryevich Vyrodkov was a Russian military engineer, inventor, and diak. Ivan Vyrodkov's name was first mentioned in 1538. It is known that...
- male, 643 years old
- Konrad Kyeser war a military engineer, author of "Bellifortis" (ca. 1405), a book on siege engines popular throughout the 15th century. Originally...
- male, deceased (1123)
- Eustace Grenier (also Garnier, Granarius, Grenarius was an important crusader lord, and constable of the Kingdom of Jerusalem. He was from...
- male, deceased (1220)
- Guy de Montfort was the Count of Bigorre from 6 November 1216 to 1220 in right of his wife, Petronilla. He was a son of Simon IV de Montfort and...
- male, deceased (1689)
- Nicolas Grollier de Servière was a French inventor and ornamental turner who became well-known for creating a series of fantastic machines. G...
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