The second wife of William Cavendish, duke of Newcastle, was born at St. John's near Colchester in Essex, about the latter end of the reign of King James I. and was the youngest daughter of Sir Charles Lucas, a gentleman of great spirit and fortune, who died when she was very young. The duchess herself in a book intitled Nature's Pictures, drawn by Fancy's pencil to the life, has celebrated both the exquisite beauty of her person, and the rare endowments of her mind. This lady's mother was remarkably assiduous in the education of her children, and bestowed upon this, all the instructions necessary for forming the minds of young ladies, and introducing them into life with advantage. She found her trouble in cultivating this daughter's mind not in vain, for she discovered early an inclination to learning, and spent so much of her time in study and writing, that some of her Biographers have lamented her not being acquainted with the learned languages, which would have extended her [163] knowledge, corrected the exuberances of genius, and have been of infinite service to her, in her numerous compositions.

In the year 1643 she obtained leave of her mother to go to Oxford, where the court then resided, and was made one of the Maids of Honour to Henrietta Maria, the Royal Consort of King Charles I. and when the Queen was forced to leave the arms of her Husband, and fly into France, by the violence of the prevailing power, this lady attended her there. At Paris she met with the marquis of Newcastle, whose loyalty had likewise produced his exile; who, admiring her person and genius, married her in the year 1645. The marquis had before heard of this lady, for he was a patron and friend of her gallant brother, lord Lucas, who commanded under him in the civil wars. He took occasion one day to ask his lordship what he could do for him, as he had his interest much at heart? to which he answered, that he was not sollicitous about his own affairs, for he knew the worst could be but suffering either death, or exile in the Royal cause, but his chief sollicitude was for his sister, on whom he could bestow no fortune, and whose beauty exposed her to danger: he represented her amiable qualities, and raised the marquis's curiosity to see her, and from that circumstance arose the marquis's affection to this lady. From Paris they went to Rotterdam, where they resided six months: from thence they returned to Antwerp, where they settled, and continued during the time of their exile, as it was the most quiet place, and where they could in the greatest peace enjoy their ruined fortune. She proved a most agreeable companion to the marquis, during the gloomy period of exile, and enlivened their recess, both by her writing and conversation, as appears by the many compliments and addresses he made her on that occasion.

[164] The lady undertook a voyage into England, in order to obtain some of the marquis's rents, to supply their pressing necessities, and pay the debts they had been there obliged to contract; and accordingly went with her brother to Goldsmith's Hall, where, it seems, the committee of sequestration sat, but could not obtain the smallest sum out of the marquis's vast inheritance, which, amounted to 20,000 l. per annum; and had it not been for the generosity and tenderness of Sir Charles Cavendish (who greatly reduced his own fortune, to support his brother in distress) they must have been exposed to extreme poverty.

Having raised a considerable sum, by the generosity of her own, and the marquis's, relations, she returned to Antwerp, where she continued with her lord, till the restoration of Charles II, upon which, the marquis, after six years banishment, made immediate preparation for his return to his native country, leaving his lady behind him to dispatch his affairs there, who, having conducted them to his lordship's satisfaction, she soon followed her consort into England. Being now restored to the sunshine of prosperity, she dedicated her time to writing poems, philosophical discourses, orations and plays. She was of a generous turn of mind, and kept a great many young ladies about her person, who occasionally wrote what she dictated. Some of them slept in a room, contiguous to that in which her Grace lay, and were ready, at the call of her bell, to rise any hour of the night, to write down her conceptions, lest they should escape her memory.

The young ladies, no doubt, often dreaded her Grace's conceptions, which were frequent, but all of the poetical or philosophical kind, for though she was very beautiful, she died without issue: she is said to have been very reserved and peevish, perhaps owing to the circumstance just mentioned, [165] of having never been honoured with the name of mother.

Mr. Jacob says, that she was the most voluminous writer of all the female poets; that she had a great deal of wit, and a more than ordinary propensity to dramatic poetry; and Mr. Langbaine tells us, that all the language and plots of her plays were her own, which, says he, is a commendation preferable to fame built on other people's foundation, and will very well atone for some faults in her numerous productions. As the Duchess is said to be negligent, in regard to chronology in her historical writings, so others have been equally remiss, in this respect, with regard to her Grace, for, among the many authors who have taken notice of her, not one has mentioned the year in which she died, and even her monumental inscription, where one might reasonably expect it, is silent, both in respect to her age, and the time of her death. But Mr. Fulman, in the 15th volume of his MS. collections in the Corpus Christi College Archives, observes, that she died in London Anno 1673, and was buried at Westminster, January 7, 1673-4, where an elegant monument is erected to her memory, of which, take the following account given by Dr. Crul in the Antiquities of that Church. 'Against the skreen of the chapel of St. Michael, is a most noble spacious tomb of white marble, adorned with two pillars of black marble, with entablatures of the Corinthian order, embellished with arms, and most curious trophy works; on the pedestal lye two images, in full proportion, of white marble in a cumbent posture, in their robes, representing William Cavendish, duke of Newcastle, and Margaret his duchess, his second and last wife, being the daughter of Sir Charles, and the sister of lord Lucas of Colchester; who as she had deservedly acquired the reputation of a lady [166] of uncommon wit, learning, and liberality; so the duke her husband had rendered himself famous for his loyalty, and constant fidelity to the royal family, during the civil wars in this kingdom and in Scotland. The duke having caused this stately monument to be erected here to the memory of his lady, died soon after in the year 1676, aged 84, and was interred here.'

The Epitaph for the Duchess.

"Here lies the loyal Duke of Newcastle and his Duchess, his second wife, by whom he had no issue. Her name was Margaret Lucas, youngest sister to the Lord Lucas of Colchester, a noble family, for all the brothers were valiant, and all the sisters virtuous. This Duchess was a wise, witty, and learned Lady, which her many books do well testify: She was a most virtuous, and loving, and careful wife, and was with her Lord all the time of his banishment and miseries; and when they came home never parted with him in his solitary retirements."

The following is a catalogue of her works, in which we have taken pains to be as accurate as possible, in order to do justice to the poetical character of this lady.

  1. The World's Olio.
  2. Nature's Picture drawn by Fancy's Pencil to the Life.
  3. In this volume there are several feigned stories of natural descriptions, as comical, tragical, and tragi-comical, poetical, romancical, philosophical, and historical, both in prose and verse, some all [167] verse, some all prose, some mixt; partly prose, and partly verse; also some morals, and some dialogues, Lond. 1656. folio.
  4. Orations of different sorts, on different occasions, Lond. 1662.
  5. Philosophical and Physical Opinions, 1633, folio.
  6. Observations on Experimental Philosophy; to which is added, the Description of a New World. Mr. James Bristow began to translate some of these Philosophical Discourses into Latin.
  7. Philosophical Letters; or modest Reflections on some Opinions in Natural Philosophy, maintained by several famous and learned authors of this age, expressed by way of letters, Lond. 1664, fol.
  8. Poems and Fancies, Lond. 1664, folio.
  9. Sociable Letters, 1664, folio.
  10. The Life of the Duke of Newcastle her husband, which was translated into Latin, and is thought to be the best performance of this lady.
  11. Observations of the Duke's, with Remarks of her own,
  12. In the Library of the late Mr. Thomas Richardson was the Duchess of Newcastle's poems, 2 Vol. fol. MS. and in the library of the late bishop Willis was another MS. of her poems in folio.