William Lloyd ap Maurice 1
From Welsh Biography Online (http://yba.llgc.org.uk/en/s-MAUR-OWE-1450.html):
MORRIS (or MAURICE), eldest son of JOHN AP MEREDYDD, Eifionydd, m. Angharad, daughter of Ellis ap Griffith ab Einion, and had by her eight children, amongst whom were (a) William Lloyd ap Maurice, ancestor of the Lloyd family of Rhiwedog, near Bala (q.v.) ;
and from Welsh Biography Online (http://yba.llgc.org.uk/en/s-LLOY-RHI-1395.html) :
LLOYD family, of Rhiwaedog (Rhiwedog ), parish of Llanfor, Mer. Although the present (Plas) Rhiwaedog, near Bala, was not built until the second half of the 17th cent. (1664 ? - see sketch plan in Merioneth Inventory under item 364), there is documentary evidence that the Lloyd family is ancient and was once dominant. According to J. Y. W. Lloyd (Arch. Camb., 1874, 198) the 'Lloyd family became possessed of Rhiwaedog by the marriage of their ancestor MEREDYDD AB IEUAN AP MEREDYDD with MARGARET, eldest daughter and coheiress of EINION AB ITHEL of Rhiwaedog, Esquire of the Body of John of Gaunt, Duke of Lancaster, in A.D. 1395, and high sheriff of Meirionydd for life. He was [according to Lloyd ] the son of ITHEL AB GWRGENEU FYCHAN AB GWRGENEU AP MADOG AP RHIRYD FLAIDD.'
The deputy-herald Lewis Dwnn , when he visited Rhiwaedog on 1 Aug. 1592, received a copy of the family pedigree from ELISE AP WILLIAM LLOYD, who was high sheriff of Merioneth in 1565. The ancestry as given by Dwnn (Visitations, ii, 225-6 - see the footnotes by W. W. E. Wynne ) is traced through Owain Gwynedd (q.v.) and Llywarch Hen (q.v.) to Coel Godebog. J. E. Griffith (Pedigrees, 234) gives the descent from Owain Gwynedd down to 1832, and (ibid., 383) shows also the relationship of SIMON LLOYD (d. 1711) (q.v.) , of Plasyndre, Bala (brother of the JOHN LLOYD of Rhiwaedog who d. in 1724), and of his descendants, to the main branch of the family. This main branch ended in the first half of the 19th cent. with the deaths, in each case without issue, of (a) WILLIAM LLOYD DOLBEN, who was succeeded by two cousins, (b) MARTHA ILES (d. 1825), and (c) her sister ANN SOPHIA MARIA ILES; the surviving Iles sister d. in 1832, having bequeathed the property to Frances (daughter of John Lloyd of Berth and Rhagatt), wife of Richard Watkin Price , of Rhiwlas, also in the parish of Llanfor.