Michelangelo Buonarroti (Michelangelo di Lodovico Buonarroti Simoni) was born on March 6, 1475, in Caprese, Italy. ... Florence during the Renaissance period was a vibrant arts center, an opportune locale for Michelangelo's innate talents to develop and flourish.
This beautiful altarpiece is by the Italian Renaissance painter Carlo Crivelli. It represents the Madonna and Child enthroned with Saint Jerome and Saint Sebastian.
Short answer-half note.
In common time the quarter note equals one beat, and there are four quarter notes in a measure.
Songs in alla breve contain two beats per measure, with the half note equaling one beat. That means that the time signature of the alla breve is represented as 2/2 (not 4/4 as common time is).