TYTHEGSTON (LLAN-DUDWG), a parish, comprising the Upper and Lower divisions, in the union of BRIDGEND-AND-COWBRIDGE, hundred of NEWCASTLE, county of GLAMORGAN, SOUTH WALES, 3+ miles (W.) from Bridgend; and containing 792 inhabitants, of which number 696 are in the Upper, and 96 in the Lower, division. The present name of this place is only a modification of its ancient Welsh appellation, Llan Dudwg, signifying Dudwg's town," and originally derived from the dedication of its church to St. Dudwg, or Tudwg, one of the disciples of Cenydd, who flourished about the middle of the sixth century. The parish is of small extent, but contains some good arable and pasture land; and the upper division abounds with iron-ore, coal, and clay for making bricks, of which considerable quantities are procured, and by means of a railroad communicating with the little harbour of Porthcawl, shipped off to the neighbouring coast. The living is annexed to the vicarage of Newcastle; the church is a small ancient edifice, not distinguished by any architectural details. In the Higher division is a day school, in which about 30 children are instructed at their parents' expense. Catherine Lougher, by will, in 1722, gave 20s. for a sermon to be preached every year, and she gave to Robert Knight £100, to purchase lands for the purpose; but her intention does not appear to have been fulfilled. Thomas Leyson, in 1737, left two sums of l Os. each, for two sermons to be preached yearly, and 10r. to the minister of the parish where he should be buried, for a sermon on the Sunday next after every anniversary of his death: these sums, and Catherine Lougher's bequest, are incorrectly mentioned in the returns of 1786 to have been for the poor; and though paid to the minister down to 1825, they have been discontinued since that period, owing to the difficulty of identifying the land.