Author: Geraint Talfan Davies.

For the best part of a century Merthyr Tydfil was the largest centre of iron production in the world. It wrote itself into history as a place of epoch-making change. At Cyfarthfa Castle, former home of the Crawshay dynasty of ironmasters, plans are afoot to tell the story anew in all its power and variety.

Awdur: Geraint Talfan Davies.

Am bron i ganrif, Merthyr Tudful oedd y ganolfan gynhyrchu haearn fwyaf yn y byd. Ysgrifennodd ei hun i hanes fel lle o newid cyfnodol. Yng Nghastell Cyfarthfa, cyn gartref i frenhinlin meistri haearn Crawshay, mae cynlluniau ar y gweill i adrodd yr hanes o'r newydd yn ei holl rym ac amrywiaeth.