He was the son of Sir Matthew Carew, master in chancery, and his wife Alice, daughter of Sir John Rivers, Lord Mayor of the City of London and widow of Ingpen. The poet was probably the third of the eleven children of his parents, and was born in West Wickham in London, in the early part of 1595; he was thirteen years old in June 1608, when he matriculated at Merton College, Oxford. He took his degree of B.A. early in 1611 and proceeded to study at the Middle Temple.