William de Port-St. John, Fonmon (heir of Wm ap Hopkin de Cantilupe/Nereberd & Mabel Umfreville)

1208 - 1296  (88 years)  Submit Photo / Document

• Name	William de Port-St. John
  Suffix	Fonmon (heir of Wm ap Hopkin de Cantilupe/Nereberd & Mabel Umfreville)
  Birth	1194-1208
  Gender	Male
  Fact	1264	Boughton, Spelhoe, Northampton, England, UK
  	Heir to William d'Abigny via his grandmother Margaret Umfreville d'Abigny??? Margaret's aunt was Mabel Umfreville de Cantilupe/Nerberd. Other lands held of the honor of Huntingdon were those in the possession of the Daubeny family; William Daubeny died seised of land in Boughton c. 1 264,^' and in 1282 this holding was said to amount to 32virgates.2It may have been afterwards acquired by the lords of the chief manor for there is no further trace of it.
  Fact	1264	Broughton, Northampton, England, UK
  	Other lands held of the honor of Huntingdon were those in the possession of the Daubeny family; William Daubeny died seised of land in Boughton c. 1 264,^' and in 1282 this holding was said to amount to 32virgates. Note: It went to William de Port-St. John, then his son Henry.
  Fact	1265	Boughton, Spelhoe, Northampton, England, UK   [1]
  	C. 1914. Release by William, son of Henry de Sancto Johanne, of Boketon, to the master and brethren of the hospital of Holy Trinity without Northampton, of all his right in lands in Boketon (Boughton), which Agnes de Dodeford formerly had of the gift of the late Ralph, rector of the church of Bokinton, in consideration of receiving two loaves of white bread a week from the said hospital and one loaf of squires' bread (panem ad armigerum). Witnesses:—Sir Roger de Hakilton, knight, Sir William de Sadinton, burgess of Leicester, and others (named). [c. A.D. 1265.]
  	Notes (Log in)
  Fact	1265	Boughton, Spelhoe, Northampton, England, UK   [1]
  	C. 1915. Release by William, son of Henry de Sancto Johanne, of Boketon, to the master and brethren of the hospital of Holy Trinity without Northampton, of all his right in three loaves of bread which he received weekly from the said hospital in consideration of his release of land in Boketon (Boughton). St. Katherine's day, A.D. 1265.
  Fact	24 Oct 1268	Northamptonshire, England, UK   [2]
  	1268 On October 24, William de St. John of Northamptonshire mainperned William Taylard of Rutland. Oct. 24. Westminster. Pardon to William Taylard of the county of Rutland, by mainprise of William de Sancto Johanne of co. Northampton and Richard de Sancto Johanne of co. Bedford.
  Fact	12 Apr 1277	Brackley, Alboldstow, Northamptonshire, England, UK   [3, 4]
  	1273 Land held by Wiiliam de Sancto Johanne in Northamptonshire was mentioned in the IPM for Arnold (Ernaldus) de Bosco (Bois), Writ to Richard de Holebrok, the king's steward, 12 April, 5 Edw. I. Northampton. Inq. [undated.] ... Blacolvisle [Brackley]. 80 virgates land, held of the said Arnold by William de Sancto Johanne by service of ¼ knight's fee, and he had there view of frank pledge worth 5s. yearly more or less.
  Fact	1268-1278
  	Held manors in Northamptonshire and Bedfordshire.
  Fact	1284
  	A witness to the proceedings on the election of the abbot of St. Peter's Gloucester.
  Fact	1284
  	A witness to the proceedings on the election of the abbot of St. Peter's Gloucester.
  Fact	1285  [5]
  	1285 A charter of a Robert de St. John, son and heir of a William de St. John, was confirmed. Aug. 6. Woolmer. Inspeximus and confirmation of a charter of Robert de Sancto Johanne, son and heir of William de Sancto Johanne, to the prior and convent of Boxgrave, exempting their tenants from suit of his courts of Halnak and other his manors. Witnesses:—William de Ripar', Ralph de Rye, Ralph de Raliche, Thomas de Argenteyn, Matthew de Venoyz, knights; Peter de Turevile, then steward, Nicholas, parson of Chauton [Chawton, Hampshire, England], Robert Autresy, William de Sevebech, John de Merewe, William de Camera, John de Cristechirche, John Legat and others.
  	Notes (Log in)
  Fact	1289  [6]
  	Among a group of Glamorgan landowers that witnessed an exchange agreement between Gilbert de Clare and Neath Abbey drawn up at Usk.
  Fact	1270-1296
  	British National Library as part of the “St. John Evidence” (Lansdowne MS 860 A, beginning at folio 348b) where on folio 349a there is a transcript of a deed in Latin from Richard Abell of Fonmon, acting in the capacity as a trustee, to Henry de St. John, son of William de St. John. “The Manor and Castle of Fonmon, Near Barry”, on page 65 it discusses this deed, saying that Richard Abell was a chaplain, surmising that Henry St. John was a younger son of William St. John and that William St. John was probably deceased at the time of the deed. While the deed itself does not contain a date, the names of the parties and witnesses and other identifiers in the document have caused Mr. Thomas to approximate the date to be c. 1300. Of particular note, one of the witnesses was Henry’s uncle, Philip de St. John, the grantee of the c. 1290 deed.
  	Notes (Log in)
  Fact	1296
  	By 1296, William had been succeeded by John St. John (probably his grandson from Henry)
  Fact	1270-1296
  	De Port-St. John Properties from Lordship of Llancarfan from Mawd ferch Roger de Umfreville and William de Nereberd de Cantilupe: Fonmon (with castle), Penmark (with castle), Llanvithyn, Llancadle, acquired Porthkerry from 1385 Blount Deed. St. John Properties from Lordship of Penmark from the 3/4ths Fee of Penmark from Elizabeth Blount deed. Odyn’s Fee, Penmark Place, Penmark farmland Cwm Cidy with Barry Castle (West Barry) (transferred to de Port-St. John family when Alexander de Port-St. John married Margery (ferch) John (St. John) of Penmark Place circa 1400-1420. This map is taken from an article entitled “Manor Court Records and the Historian: Penmark, Fonmon and Barry, 1570-1622”, by Matthew Griffiths, published in Morgannwg, vol. XXV (1981), pages 43, et seq, and specifically on page 45. https://journals.library.wales/view/1169834/1172471/44#?xywh=-1495%2C-2%2C5252%2C3370
  Fact	1270-1296	Fonmon Castle (Welsh: Castell Ffwl-y-mwn) , East Aberthaw, Glamorgan, Wales   [7]
  	granted a plot of land in East Aberthaw to his brother Philip.
  	Notes (Log in)
  Death	1290-1296
  Association	William d'Aubigny, of Broughton, Northampton (Relationship: Broughton passed from Wm. d'Abigny to William St. John in 1264)
  Association	Richard Abell, of Fonmon (Relationship: Richard Abell managed estate for Henry son of William)
  Person ID	I13466	St. John Origin and Ancestry DNA Database
  Last Modified	10 Feb 2024

  
  

  Father	Sir Robert de Port-St. John, of Basing,   b. abt. 1190, Basing, Hampshire, England, UK d. Mar 1267, Basing, Hampshire, England, UK (Age 77 years)
  Relationship	Birth
  Mother	Agnes de Cantilupe, of Lordship of Lancarfan m. Robert de Port-St. John; m2. John Turberville,   b. abt. 1190, Candleston Castle, Merthyr Mawr, Bridgend, Glamorgan, Wales, UK d. bef. 1290, Lordship of Llancarfan, Glamorgan, Wales, UK (Age 99 years)
  Relationship	Birth
  Marriage	1210-1225	Sussex, England,UK   [8, 9, 10, 11]
  Marriage fact	On pages 20 and 27 of Notitia St. Johanniana it say this Robert St. John’s younger son, William St. John had “Faumont” (i.e., Fonmon) in appendage while his eldest son, John St. John was the heir and received Basing. https://www.google.co.uk/books/edition/Notitia_St_Johanniana_or_Genealogical_an/2UhgAAAAcAAJ?hl=en&gbpv=1 Fonmon came from the Lordship of Llancarfan held by the de Nereberd-Cantilupe family that descend from Mawd de Umfreville, the daughter of Roger de Umfreville. Mawd de Umfreville m1) Malcolm de Londres and m2) William de Nereberd de Cantilupe. Her brother was Phillip de Nereberd.
  Marriage fact	1346  [12]
  	Thomas ab Aron was holding Fonmon Castle in 1346 (cousin of Agnes de Cantelupe. Her father's uncle was Aron ap Hywel father of Thomas ab Aron) High Sheriff of Glamorgan 1346. (Bartrum, Welsh Genealogies 300-1400, vol. 3 p. 124)RESIDENCE: Castell Ffonmon. (Bartrum, Welsh Genealogies 300-1400, vol. 3 p. 124) See: https://www.familysearch.org/ark:/61903/2:2:3KHK-1Q7
  de Port-St. John Documents		Media (Log in)
  de Port-St. John Marriage		Media (Log in)
  Family ID	F4429	Group Sheet  |  Family Chart

  
  

  Family	Isabella Martin,   b. 1194-1208
  Marriage	1232	Sussex, England,UK
  Marriage	. . . come now to William de St. John of Fourment, a younger son to Robert de St. John of Basing; which William had Faurmont in appenage, and lived Temp. Ed. I [1272-1307] about which time, to one of this name, I find Isabel was his Wife, who was Daughter and Coheir to William Combmartin . . . ."   [13]
  Children	+ 1. Henry de Port-St. John, of Broughton, Northampton & Fonmon, Glamorgan,   b. abt. 1250, Basing, Hampshire, England, UK d. aft. 1312, Fonmon Castle (Welsh: Castell Ffwl-y-mwn) , East Aberthaw, Glamorgan, Wales (Age 63 years)  [Father: Birth]  [Mother: Birth]   2. Margery de Port-St. John  [Father: Birth]  [Mother: Birth] + 3. John de Port-St. John, of Fonmon,   b. 1219-1228
  Family ID	F4353	Group Sheet  |  Family Chart
  Last Modified	28 Jun 2024

  
  

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• Reference

  Suzanne St. John. "William de Port-St. John, Fonmon (heir of Wm ap Hopkin de Cantilupe/Nereberd & Mabel Umfreville)". The St. John Genealogy Project. https://stjohngenealogy.com/getperson.php?personID=I13466&tree=OSA0001 (accessed April 24, 2025).

  
  

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