Editing Twm Siôn Cati (section)

=== Early life ===
Twm is said to have been born at Porth y Ffynnon on the outskirts of [[Tregaron]].<ref>{{cite web |title=Tregaron and area |url=https://www.discoverceredigion.wales/areas-of-ceredigion/cambrian-mountains/communities-of-the-cambrian-mountains/tregaron-and-area/ |website=Discover Ceredigion |access-date=4 February 2025}}</ref>

Although John Dee recorded Twm's date of birth as 1532 (either 1 August or 10 August),<ref>{{cite book |last1=J. Roberts and Andrew G. Watson |title=John Dee's Library Catalogue |date=1990 |pages=45-46}}</ref> there is little written record of his birth and childhood, suggesting he may have been illegitimate. While his mother was Cati Jones of Tregaron, his father is sometimes stated to be Siôn ap Dafydd ap Madog ap Hywel Moetheu of Porth-y-ffin, Tregaron.

As an illegitimate son, he unofficially took both his father and mother's names, becoming known as Thomas Jones in English, but as Twm Siôn Cati in common Welsh convention.

In the tale told by Llewelyn Prichard, Twm is the illegitimate son of Cati Jones following attentions from John Wynn of Gwydir ([[John "Wynn" ap Maredudd]]); the Welsh forms of the names of his parents became incorporated into his name.