Carew's _Coelum Brittanicum_ (1633-4), for which Lawes composed the music, the two boys who afterwards acted in _Comus_ had juvenile parts. It has been pointed out that the popularity of the Mask in Milton's youth received a stimulus from the Puritan hatred of the theatre which found expression at that time, and drove non-Puritans to welcome the Mask as a protest against that spirit which saw nothing but evil in every form of dramatic entertainment. Milton, who enjoyed the theatre--both "Jonson's learned sock" and what "ennobled hath the buskined stage"--was led, through his friendship with the musician Lawes, to compose a mask to celebrate the entry of the Earl of Bridgewater upon his office of "Lord President of the Council in the Principality of Wales and the Marches of the same." He had already written, also at the request of Lawes, a mask, or portion of a mask, called _Arcades_, and the success of this may have stimulated him to higher effort. The result was _Comus_, in which the Mask reached its highest level, and after which it practically faded out of our literature. Milton's two masks, _Arcades_ and _Comus_, were written for members of the same noble family, the former in honour of the Countess Dowager of Derby, and the latter in honour of John, first Earl of Bridgewater, who was both her stepson and son-in-law. This two-fold relation arose from the fact that the Earl was the son of Viscount Brackley, the Countess's second husband, and had himself married Lady Frances Stanley, a daughter of the Countess by her first husband, the fifth Earl of Derby. Amongst the children of the Earl of Bridgewater were three who took important parts in the representation of _Comus_--Alice, the youngest daughter, then about fourteen years of age, who appeared as _The Lady_; John, Viscount Brackley, who took the part of the _Elder Brother_, and Thomas Egerton, who appeared as the _Second Brother_. We do not know who acted the parts of _Comus_ and _Sabrina_, but the part of the _Attendant Spirit_ was taken by Henry Lawes, "gentleman of the Chapel Royal, and one of His Majesty's private musicians." The Earl's children were his pupils, and the mask was naturally produced under his direction. Milton's friendship with Lawes is shown by the sonnet which the poet addressed to the musician: