13. Sir John Mainwaring, ^[1] son of Randle and Margery was born abt. 1380.  He married Margaret Delves.  King Henry VI sent him a letter commanding him to deliver to Lord Stanley (his second wife's uncle), persons in custody at the castle at Chester, including Thomas and John Nevill (sons of the Earl of Salisbury), Sir Thomas Harrington of Hornby, his son James Harrington of Brierly, Raufe Rokeby, Thomas Ashton and Robert Evereus, esquires.

14. William Mainwaring, ^[1] son of John was born abt. 1410.  He married Ellen Boteler, a sister to John Boteler of Bewsey night Warrington in Lancashire, and daughter of Sir John Boteler.  William died in the lifetime of his father.

15. John Mainwaring, ^[1] of Over Peover, Cheshire, England, son of William and Ellen was born abt. 1445.  He married Maud Legh, a widow and daughter of Robert Legh and Isabel Stanley.  He died on July 8, 1495.

16. Sir John Mainwaring, ^[1] Knight, of Over Peover, Cheshire, son of John and Maud was born abt 1471.  He Married Katherine Honford.  John died in March of 1515/16.  His alabaster monument is a representation of a knight in plate armor, with his wife by his side, and over their legs and knees is a scroll depicting their 15 children.

17. Sir Randall Mainwaring, ^[1] son of John and Katherine was born abt 1495 and died September 6, 1557.  He married Elizabeth Brereton

18. Margaret Mainwaring, ^[1] daughter of Randall and Elizabeth was born abt 1521.  She married Arthur Mainwaring of Ightfield and son of Sir Richard Mainwaring and Dorothy Corbet. (Margaret's line continues at #17 below).

13. William Mainwaring, ^[1] "the Good", of Ightfield, Shropshire, England, son of Randle and Margery was born abt. 1396 in Over-Peover, Cheshire, England.  He married Margaret Warren,  daughter of John Warren and Matilda Cheney. 

14. Thomas Mainwaring , ^[1] son of William and Margaret was born abt. 1450 in Ightfield, Shropshire, England.  He married Jane De Sutton, daughter of Sir John De Sutton and Elizabeth Berkeley.  He was tenant of two copyhold estates in Edstaston and Cotton (in Wem parish), county Salop.  Thomas died in 1508. 

15a. Cicely Mainwaring, ^[1] daughter of Thomas and Jane was born abt. 1470 in Ightfield, Shropshire, England.  She married John Cotton, son of William De Cotton and Agnes Yonge.  She died before 1516.

15b. Sir John Mainwaring, ^[1] son of Thomas and Jane was born abt. 1478.  He married Joan Lacon, daughter of Sir Richard Lacon and Margery Horde.  He was among those who entered France on June 16, 1513; he was captain in the army of King Henry VIII and was knighted at Lille.  He was the heir of his uncle George Mainwaring.  He died in 1518.

16. Sir Richard Mainwaring, ^[1] Knight, of Ightfield, Shropshire, son of John and Joan was born in 1499.  He married Dorothy Corbet, daughter of Sir Robert Corbet and Elizabeth Vernon.  He was knighted by September 28, 1536, when he took a lease from John, late Abbott, and the convent of St. Mary, Combermere, Chester.  He served as Commissioner of Peace in May 1538, was among the knights who welcomed Anne of Cleves to England on January 3, 1539/40, and served as Sheriff of Shropshire in 1544 and at other times.  He died on September 30, 1558 in St. Albans, Hertfordshire.

17. Sir Arthur Mainwaring, ^[1] son of Richard and Dorothy was born abt. 1520.  He married (#18 above) Margaret Mainwaring, daughter of Randall and Elizabeth Brereton.  Knighted at Berwick by John, Earl of Warwick, Lieutenant of the King's Army, in 1547 he was probably engaged in the campaign which led to the battle of Pinkie.  He was Member of Parliament for Shropshire in 1558, Commissioner of Peace in 1561/2, and Sheriff in 1563 and 1577.  In 1577 he was a member of the Royal Commission of Musters, responsible for seeing that all the men of Shropshire aged between 16 and 60 were "armed, trained and inspected."  He died on Sep 4, 1590.