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Madog ap Maredudd (1091 - 1160)

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Madog ap Maredudd
Born in Montgomeryshire, Walesmap
Ancestors ancestors
Husband of — married [date unknown] [location unknown]
Descendants descendants
Died in Winchester, Hampshiremap
Ap_Maredudd-21 created 19 Jan 2016 | Last modified
This page has been accessed 3,061 times.

Categories: Cymru 742-1535 | Powys.

European Aristocracy
Madog ap Maredudd was a member of royalty, nobility or aristocracy in Wales in the Middle Ages.
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Madawc ou Powis-Vadawc
Madog ap Maredudd [1]or Madoc ap Meredith
Madoc is the English spelling, Madog is the Welsh;
Meredith is the English spelling, Maredudd is the Welsh.
Madog ap Maredudd ap Bleddyn ap Cynfyn

Cymraeg: Madog ap Maredudd, brenin of Powys (d.1160)

English: Madog ap Maredudd, king of Powys[2]


Prince of Powys-Vadawc


While ancestors and descendants are known most as Princes of Powys, Madog ap Maredudd was known as Prince of Powys-Vadawg, a cantref later incorporated into Montgomeryshire.


He was the son of Maredudd ap Bleddyn [1]

Maredudd ap Bleddyn ap Cynfyn.[2]


1025 Bleddyn ap Cynfyn (obit 1075).
. 1065 Maredudd (obit 1132)
.. 1098 Madog (obit 1160)
... 1130 Gruffudd Maelor I ap Madog (obit 1191)
.... 1160 Madog ap Gruffydd Maelor (obit 1236)
..... 1195 Gruffudd Maelor II (obit 1269)[3]

Cynwrig Efell, Lord of y Glwysegl, and Einion Efell, Lord of Cynllaith were illegitimate twin sons of Madog ap Maredudd, Prince of Powys, by Eva, daughter of Madog ap Urien of Maengwynedd.[4]

1132 Accession as Prince of Powys

He succeeded his father in 1132 as Prince of Powys. [5]

He was the last of his dynasty to rule as king over the whole of Powys , including, for a time, the Fitzalan lordship of Oswestry (see Owain Brogyntyn ). [1]

Succeeding his father in 1132 , his main pre-occupation, particularly between the years 1149-57 , was the defence of Powys against the aggression of Owain Gwynedd (q.v.) . Threatened by the building of the castle of Tomen-y-Rhodwydd at the southern end of the Vale of Clwyd , Madog , in alliance with Ranulf , earl of Chester , unsuccessfully challenged Owain 's advance, losing, for a time, the control of his lands in Iâl . This loss was retrieved in 1157 when Henry II , with Madog 's support, made a decisive assertion of authority in North Wales . When he d. three years later he was still friendly with his powerful patron. [1]

1132: succeeded father as King of Powys[6] and was the last of his dynasty to rule as king over the whole of Powys.[2]

To combat Owain Gwynedd's advances into Powis, Madog first allied with Ranulf, earl of Chester. It failed. His later alliance with Henry II was successful.[2]

1148 Castle of Oswestry

The Chronicle of the Princes of Wales records that "Madog son of Maredudd built the castle of Oswestry" in 1148 and "gave Cyveiliog to his nephews Owain and Meurug, the sons of Gruffudd son of Maredudd"[748]. [5]

Marriage to Susann of Gwynedd

He married Susann of Gwynedd, daughter of Gruffydd ap Cynan King of Gwynedd & his wife Angharad of Deheubarth. [5]

While several sources identify Susanna as the daughter of Owain Gwynedd [2] [1] Cawley in Foundation for Medieval Genealogy asserts that she was the daughter of Gruffydd ap Cynan (not ‘ Owain Gwynedd ’)

Madog is also shown in some genealogies as the husband of Efa (Eirian) ferch Madog. She apparently was a mistress of Madog, but not married to him. She has been delinked as a spouse but remains mother of shome of Madog's children.

1161 Death

Madog ap Maredudd died in 1161 and was buried in Meivod.[5]

The Annales Cambriæ record the death in 1161 of "Madoc filius Maredut Powysorum princeps"[749]. [5]

The Chronicle of the Princes of Wales records that "Madog son of Maredudd Lord of Powys" died in 1159 and was buried "at Meivod"[750]. [5]


He was buried in the mother-church of Powys — S. Tysilio at Meifod . [1]

bur. mother church of Powys, St Tysillio at Melfod.[2]

Praises sung by poets

His praises were sung by the leading poets of the day, and the impression created on the minds of contemporaries by the influence which he asserted in central Wales is enshrined in contemporary prose romances. [1]

contemporary poets sang Madog's praises and characterized him in prose romance.[2]

Division of Dominions at Death

His dominions were divided among his sons and nephews: Gruffydd Maelor I, Owain Fychan, Owain Brogyntyn, and Owain Cyfeiliog.[2]

His dominions were divided among a number of minor lords of Powys — his sons and nephews — and were never again to be reunited in the hands of a single ruler. (For his heirs see Gruffydd Maelor I , Owain Fychan , Owain Brogyntyn , and Owain Cyfeiliog ).[1]


Issue of Madog and his wife Susann

Madog & his wife had four children: [5]

  1. LLYWELYN (-killed 1161). The Annales Cambriæ record that "Lewelinus filius eius [Madoc filius Maredut Powysorum princeps]" was killed in 1161[751]. The Chronicle of the Princes of Wales records that "Madog son of Maredudd Lord of Powys" died in 1159 and "shortly afterwards that his son Llywelyn was killed"[752]. [5]
  2. GRUFFYDD "Maelor" I (-1191, bur Meivod). Prince of Northern Powys (Fadog). [5] Three WT profiles need research and merging: Gruffud ou Powis-Vadawc; Griffith (Madog) ap Madog; Griffith Maelor ap Madoc
  3. MARARED . Marared´s parentage and marriage are recorded in a manuscript now at Jesus College "Marareda merch Madawc m Maredud"[753]. m IORWERTH Drwyndwyn ("Flat nose") Prince of Gwynedd, son of OWAIN ap Gruffyd King of Gwynedd & his first wife Gwladus --- (-1174). [5] Possibly the same as Margaret ferch Madog
  4. Gwenllian (Madog) ferch Madog m RHYS ap Gruffyd Prince of Deheubarth, son of GRUFFYD ap Rhys King of Deheubarth & his wife Gwenllian of Gwynedd ([1132]-1197). [5]

Illlegitimate Children

Madog had three illegitimate children by unknown mistresses:[5]

  1. [[ap Madog-28|Owain Brogyntyn ap Madoc, m MARGARET, daughter of EINION ap Seisyll of Mathafarn & his wife ---. [5]. b. ca 1135, Mercion, Montgomery shire, Wales, d. 1186.
  2. son .
  3. son .

Other children linked via WikiTree but unsourced

  1. Llewelyn (Madog) ap Madog
  2. Elise (Madog) ap Madog
  3. Efa ferch Madog
  4. Einion (Madoc) ap Madog
  5. Cynwrig Efell (Madog) ap Madog
  6. Unknown (Madog) ferch Madog


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Madog ap Maredudd. Dictionary of Welsh Biography. Main source for article: based on Professor Thomas Jones Pierce, M.A., F.S.A., (1905-1964), Aberystwyth, A History of Wales; Oxford Dictionary of National Biography; Llawysgrif Hendregadredd , 1933 , 1933 ; Dream of Rhonabwy Accessed Jan 18, 2016
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Jones Pierce, MA. FSA, Professor Thomas, "MADOG ap MAREDUDD", Welsh Biography Online",, accessed 17 September 2014
  3. The Ancestry of Owain Glyndŵr Ancient Wales Studies, by Darrell Wolcott.
  4. Lloyd, p. 209, retrieved 2014-06-21, amb
  5. 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 5.11 5.12 Cawley, Foundation for Medieval Genealogy. Kings of Powys, family of Cynfyn ap Gwerstan., Accessed January 19, 2016
  6. Mike Ashley, The Mammoth Book of British Kings and Queens
  • Pickering, W. (1890). Archaeologia Cambrensis. Google eBook.
  • Lloyd, J.Y.W. (1885). "The History of Powys Fadog, Vol 5." The History of the Princes, the Lords Marcher, and the Ancient Nobility of Powys Fadog, and the Ancient Lords of Arwystli, Cedewen, and Meirionydd. T. Richards. Google Books.

See also:

Courtesy of fantastically full family tree cf.:

Hughes of Gwerclas 1/2/3/4:


  • WikiTree profile Powis-Vadawc-1 created through the import of Spencer Family Tree 4 2002.GED on Nov 28, 2011 by Chet Spencer. See the Changes page for the details of edits by Chet and others.

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No known carriers of Madog's Y-chromosome or his mother's mitochondrial DNA have taken yDNA or mtDNA tests.

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On 2 Oct 2016 at 12:52 GMT Magnus Sälgö wrote:


Madog is 24 degrees from Kevin Bacon, 23 degrees from Joseph Broussard, 30 degrees from Helmut Jungschaffer and 22 degrees from Queen Elizabeth II Windsor on our single family tree. Login to find your connection.

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