Sir William Cavendish

James Granger, in Biographical History of England (1769; 1824) 2:290-91.

The Marquis of Newcastle, who was also governor to the Prince of Wales, was so attached to the Muses, that he could not, like the Marquis of Hertford, leave them behind him; he must carry them to the camp, and make Davenant, the poet-laureate, his lieutenant-general of the ordinance. Upon the eruption of the civil war, he raised a very considerable army in the northern counties, with which he was successful against the parliament forces, and defeated Ferdinando, lord Fairfax, at Adderton Moor: but his subsequent conduct has been justly censured, and seems to have contributed greatly to the ruin of the king's affairs. After the defeat of Marston Moor, he transported himself beyond the seas, and was, during the Interregnum, chiefly at Antwerp, where he amused himself with writing books. He was master of many accomplishments, and was much better qualified for a court, than a camp. He understood horsemanship, music, and poetry; but was a better horseman, than musician, and a better musician than a poet. He died in December, 1676.