"Robert Sidney, 1st Earl of Leicester (19 November 1563 – 13 July 1626), second son of Sir Henry Sidney, was a statesman of Elizabethan and Jacobean England. He was also a patron of the arts and a poet. His mother, Mary Sidney née Dudley, was a lady-in-waiting to Queen Elizabeth I and a sister of Robert Dudley, 1st Earl of Leicester, an advisor and favourite of the Queen." - (en.wikipedia.org 12.08.2021)