What is associated with: around 1450 with big commissions drying up sculptors turned to these head shoulders portrait pieces?

Who performed with 'around 1375 and the green knight'? What is associated with: around 1387 this poet wisely noted in love ther is but litel reste? What is associated with: around 1400 gian galeazzo visconti based in this city ruled most of northern italy but was foi… What is associated with: around 1400 tsong kha pa founded the yellow hat order of this tibetan form of buddhism? What is associated with: around 1485 this florentine painted mars and venus the birth of venus? What is associated with: around 1492 he created the marble battle of the centaurs no ceiling on his genius? What is associated with: around 150 ad this egyptian astronomer cataloged over 1000 stars in his work almagest? What is associated with: around 1500 he sketched not only a flying machine but a parachute?