One can basically divide all historical persons into four categories, with fuzzy boundaries:
1. Well-known people, also to the (informed) general public. These include Roger Bacon, Leonardo da Vinci, Johannes Hartlieb, Leon Batista Alberti, Edward Kelly, Giordano Bruno, etc. Many of them have appeared in Voynich-related theories.
2. Largely unknown people to the (informed) general public, but who are well known to historians and related researchers, from documents left by them. Since I am not part of that group, it is hard to give a good list, but people like Jean Ruel (1474-1537), Konrad von Butzbach (fl. 1425) are examples (and they are among the better known ones).
3. People whose names appear a few times in historical records, but we know nothing about them
4. People whose names are completely unknown, and have not appeared anywhere
The size of group 1 is vanishingly small compared to the others.
1. Well-known people, also to the (informed) general public. These include Roger Bacon, Leonardo da Vinci, Johannes Hartlieb, Leon Batista Alberti, Edward Kelly, Giordano Bruno, etc. Many of them have appeared in Voynich-related theories.
2. Largely unknown people to the (informed) general public, but who are well known to historians and related researchers, from documents left by them. Since I am not part of that group, it is hard to give a good list, but people like Jean Ruel (1474-1537), Konrad von Butzbach (fl. 1425) are examples (and they are among the better known ones).
3. People whose names appear a few times in historical records, but we know nothing about them
4. People whose names are completely unknown, and have not appeared anywhere
The size of group 1 is vanishingly small compared to the others.