As a result, possibly, of this division of loyalties, the bulk of the family possessions remained in the possession of the line of Ieuan ap Maredudd until 1463 ; in that year, the lands were partitioned and Gesail Gyfarch fell to the share of Ieuan ap Robert ap Maredudd ( 1437 - 1468 ). He was a Lancastrian and died of the plague at Gesail Gyfarch in 1468 . His son, Maredudd , to avoid implication in the feuds of his kinsmen in Eifionydd , purchased the lease of Dolwyddelan castle about 1489 ; he later built Penamnen , and finally purchased Gwydir from Dafydd ap Hywel Coetmor about 1500 .
The best known member of the family was Maurice 's son,
Unscrupulous, acquisitive, litigious, and hot-tempered, he was the leader of the dominant party in Caernarvonshire , and it was only in the closing years of his life that the supremacy of his family and party in the county was threatened by the rivalry of the Griffiths of Cefn Amwlch , leaders of the conservative Llyn squires (see below, under Sir Richard Wynn , second baronet ). He attempted to introduce the manufacture of Welsh friezes into the Vale of Conway , was interested in the Parys Mountain (Anglesey) copper mines , and in 1625 suggested to Sir Hugh Myddelton a project for reclaiming Traeth Mawr , separating Caernarvonshire from Merioneth . He founded [?] a school and alms houses at Llanrwst in 1610 [but see under Williams , John ( fl. 1584-1627? ) . One of the petitioners for a royal commission to hold an eisteddfod in 1594 , he encouraged the literary activities of his kinsmen, Thomas Wiliems of Trefriw .
His own History of the Gwydir Family was published in 1770 (ed. Daines Barrington ), in 1827 (ed. Angharad Llwyd ), 1878 (ed. Askew Roberts ), and again in 1927 (ed. John Ballinger ). He was also the author of a survey of Penmaenmawr (published in 1859 and reissued in 1906 , ed. W. Bezant Lowe ).
By his wife Sydney , daughter of Sir William Gerrard , he had ten sons and two daughters. His eldest son,
His marriage in 1618 to Anne , daughter and coheiress of Sir Francis Darcy , was childless, and the baronetcy and estates fell to his brother,
Professor Glyn Roberts, M.A., (1904-1962), Bangor
Published date: 1959