Galileo Galilei was born in Pisa (then part of the Duchy of Florence), Italy, on 15 February 1564, the first of six children of Vincenzo Galilei, a famous lutenist, composer, and music theorist, and Giulia (née Ammannati), who had married in 1562. Galileo became an accomplished lutenist himself and would have learned early from his father a scepticism for established authority, the value of well-measured or quantified experimentation, an appreciation for a periodic or musical measure of time or rhythm, as well as the results expected from a combination of mathematics and experiment. Three of Galileo's five siblings survived infancy. The youngest,
Michelagnolo Galilei Michelagnolo Galilei Michelagnolo Galilei (sometimes spelled Michelangelo; 18 December 1575 – 3 January 1631) was an Italian composer and lutenist of the late Renaissance and early Baroque eras, active mainly in Bavaria and Polish-Lithuanian Commonwealth. He was the son of music theorist and lutenist Vincenzo Galilei, and the younger brother of the scientist Galileo Galilei. Galilei was born in Florence. He learned to play the lute at an early age, like his father. Most likely he was destined for a career in Florence, but when his father died in 1591, the sixteen-year-old lutenist was put in the charge of his