Hywel ap Rhys (Glywysing)

His sons Arthfael and Owain were probably responsible for the reünification of the realm of Morgannwg.

[1] A cross in the collection of ancient stones at St Illtyd's Church, Llantwit Major has been identified with Hywel.

The Houelt Cross has a Latin inscription written in half-uncial Latin which has consistently been interpreted as a memorial cross raised by Hywel for his father.

R. A. Stewart Macalister read the inscription as: "NINOMINEDIPATRISE/TS | PERETUSSANTDIANC | --]UCEMHOUELTPROPE | --]BITPROANIMARESPA | --]ESEUS"In 1950 Victor Erle Nash-Williams translated it as "In the Name of God the Father and of the Son and of the Holy Spirit.

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