Dear Douglas,
Yes, I am having second thoughts about my second thoughts after I found this in my notes:
29 September 1385, By a deed dated at Ayton on Michaelmas day, 1385, Sir William de Ayton, knt., conveyed to Sir Ralph Eure, Sir John Conyers, and Sir William Place, knts. his manor of Bardelby on Holme co. York, for their lives, with remainder to the heirs of the said Sir Ralph and Catherine his wife, the heirs of Sir William de Place, knt., son of Sir William Place, knt. deceased, and those of Elizabeth his mother, now the wife of Sir John Conyers
James Raine, ed., Testamenta Eboracensia, vol. III, Surtees Society, 45 (Durham, 1865), 222n.
The sources for Margaret Dagworth are pretty straightforward.
Nicholas Dagworth (aged 26 and more in 1332) married, before 20 September 1334, Margaret (Inq. a. q. d., file 229, no. 12), and died 12 October 1351, leaving a son and heir, John, aged 24 and more (probably "le nepueu Dagorne, fier fu com un liespart," who fought in the Bataille des Trente), who married, before 12 June 1353, Thomasine, and died 16 August 1360, leaving a daughter and heir, Margaret, aged 2 and more in 1363. (Ch. Inq. p. m., Edw. III, file 112, no. 25, file 177, no. 20). Thomasine married, secondly, before 20 January 1366, Sir William de Furnival.
Complete Peerage, vol. 4, 27, note (c).
Inquisition taken at Holme in Rydale, Wednesday after Easter, 11 Richard II [1 April 1388], before Thomas de Etton and Stephen de Herlethorp ... William son of William [Playce] then entered on the lands etc. as his right and inheritance, and received the issues until the Invention of the Holy Cross last [3 May 1387], when he died. He was married by Thomas de Hatfeld, late bishop of Durham, to Margaret daughter of Thomasia de Furnyvall, [by what title] the jurors know not. The marriage was worth 200 marks. Elizabeth [his daughter], aged 7 years, is his heir. She is in the custody of the said Thomasia and Margaret, and her marriage is worth £300.
Calendar of Inquisitions Post Mortem, vol. 16, 7-15 Richard II (1974), 3, No. 6.
26 November 1388, Appointment of John Leek, knight, Thomas de Etton,and William Hesill, to receive Elizabeth, daughter and heir of William, son of William son of Thomas Playce, a minor, who since the said William's death has come into the custody of Thomasia de Furnyvale, and Margaret, her daughter, from the said Thomasia and Margaret, and keep her safe and unmarried, until it is fully determined in the king's court whether the marriage belongs to the king, or to the said Thomasia and Margaret.
Calendar of Patent Rolls, Richard II, Vol 3, 533.
26 January 1390, To the treasurer and the barons of the exchequer. Writ of supersedeas until the octaves of St. John Baptist next in respect of their demand against John Leek knight, Thomas de Etton and William Hesyll to answer for the body of Elizabeth daughter and heir of William son of William son of Thomas Playce, who after her father's death, being within age, came to the ward of Thomasia de Furnyvale and Margaret her daughter, and whose marriage pertains to the king it is said; as by letters patent of 21 November 12 Richard II. the king appointed the said John, Thomas de Etton and William Hesill to receive her in his name, and to keep her in honourable custody, not marrying her, until a plea in the king's court should be debated and determined, whether that marriage ought to pertain to the king or to the said Thomasia and Margaret, or until further order; and the plea is yet pending without debate.
Calendar of Close Rolls, Richard II: vol. 4: 1389-1392 (1922), 152.
Regards,
John