A PENYGROES man who discovered he was the son of Malaysian royalty after being adopted as a toddler is stepping up his fight for his inheritance.

Sixty-four-year-old Keith Williams had no idea of his royal origins when he began attempting to trace his biological parents, but uncovered a true story more suited to fairytales then life as a coal merchant.

The father-of-three’s incredible story was the subject of an S4C documentary, Fy Nhad y Swltan in 2016.

Keith, known as Keith y Glo - Keith the Coal, was born in Llanelli and adopted when he was just two years of age.

He spent more than 20 years working in his adoptive father’s coal business, but in later years embarked on a voyage of discovery in a bid to trace his biological parents.

Keith, who has six granddaughters, eventually managed to trace his biological mother, Elizabeth Rosa, in the Peterborough area.

It was through her that he discovered his biological father was actually a member of the Malaysian monarchy – who served as the 33rd Sultan of the Perak state after returning to his homeland from the UK.

But now, despite not wanting to take the throne, he believes he has a claim to his father’s inheritance, but his living relatives have shut him out.

He told the The Mirror: “It is a shame they have decided to close ranks on me. I understand if they feel threatened but it’s not like I am claiming the throne.

“I am sure my father knew about me and if he did, I am sure he would have left something behind for me and I think it is only right I know about it.”

There are no precise figures on the family’s net worth, but the current Sultan of Perak’s daughter Eleena Azlan Shah was listed by Forbes as being worth £151million in 2012.

Speaking about discovering his heritage, Keith said: “It’s like a story from a Disney film and if someone had told you this story in the café or by the bar, you’d tell them to get out.”

“I’ve seen my father’s tomb, which was very emotional.”