Leonardo da Vinci was considered a Renaissance man because he was a prolific inventor, painter, sculptor, and architect.
The definition of a Renaissance man or woman is a person who is well educated and sophisticated and who has talent and knowledge in many different fields of study.
An example of a Renaissance man was Leonardo da Vinci.
Renaissance man (or woman)
a highly cultivated man (or woman) who is skilled and well-versed in many fields of knowledge, work, etc., as in the arts and sciences
Origin of Renaissance man (or woman)from embodying the qualities of an idealized person of the Renaissance