how did the term originate?
The term was first used by Jacob Burckhardt in German "Hochrenaissance" in 1855 and has its origins in the "High Style" of painting and sculpture of the time period around the early 16th century described by Johann Joachim Winckelmann in 1764.
High Renaissance
The term "High Renaissance" was first used by Jacob Burckhardt in German ("Hochrenaissance") in 1855 and has its origins in the "High Style" of painting and sculpture of the time period around the early 16th century described by Johann Joachim Winckelmann in 1764. 
when did leonardo da vinci start painting at what age UNANSWERABLE who is leonardo da vinci? He was an Italian polymath of the High Renaissance who is widely considered one of the greatest painters of all time. when did this aforesaid historical period start? Most art historians state that the period started around 1495 or 1500.
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High Renaissance [SEP] Origin of term
The term "High Renaissance" was first used by Jacob Burckhardt in German ("Hochrenaissance") in 1855 and has its origins in the "High Style" of painting and sculpture of the time period around the early 16th century described by Johann Joachim Winckelmann in 1764. Extending the general rubric of Renaissance culture, the visual arts of the High Renaissance were marked by a renewed emphasis upon the classical tradition, the expansion of networks of patronage, and a gradual attenuation of figural forms into the style later termed Mannerism.