Vivaldi lived from 1677 approximately, to 1741, so he lived in the last part of the 17th century, and into the 18th Century.
The mitre (British English) (/ËmaÉªtÉr/; Greek: Î¼Î¯ÏÏÎ±, headband or turban) or miter (American English; see spelling differences), is a type of headgear now known as the traditional, ceremonial head-dress of bishops and certain abbots in traditional Christianity.
shaped like a bishop's miter or having a miter-shaped apex. 2. wearing, or entitled or privileged to wear, a miter. Origin of mitered. Middle English.