A two-part series on Llanystumdwy historian Jan Morris starts tonight (Sunday, 20 September).

S4C will broadcast ‘Chwedl Jan Morris’ at 8pm, exploring the life, work and legacy of one of Wales' most celebrated writers through the eyes of her youngest son, poet and author Twm Morys.

In a highly personal series, Twm retraces the places, stories and memories that shaped Jan’s remarkable life, while seeking to answer a question that has followed him for years:

"What is it like to be the son of someone like Jan? In my experience, it was like being the son of some legendary character."

Reflecting on Jan's extraordinary journey, he adds:

"When my father was a boy, his name was Jim. Then when Jim became a man and went into the army, James. Then after becoming a woman, Jan. But how many Jans are there? Jan of the British Empire; Jan of LGBT history; Jan of Wales."

Through Twm's eyes, viewers are introduced to the many facets of one of the twentieth century's most fascinating figures. Travelling from the family home on the banks of the River Dwyfor to Venice and Trieste, the series reveals not only the world-renowned writer who announced the first successful ascent of Everest for The Times, and the pioneer whose gender transition made headlines around the world, but also the private individual who was a parent, friend and neighbour.

The programmes trace a life that reached far beyond the borders of any nation. It is the story of someone who met world leaders, celebrities and royalty, yet always returned to the banks of the Dwyfor and her lifelong partner, Elizabeth.

Jan's relationship with Wales lies at the heart of the series. Although born and raised in England, her strong connection to her parents' homeland became central to her identity. Through her writing, friendships and intellectual curiosity, she became one of Wales' most influential voices on the international stage.

Contributors including friends, writers, academics and those who knew her best help build a rich portrait of a person whose ability to find wonder in the everyday left a lasting impression on everyone around her. For many, it is not Jan's fame or achievements they remember most, but her curiosity, imagination and generosity of spirit.

Poet and writer Gwyneth Glyn, Twm's partner, recalls the unique experience of spending time in Jan's company.

"The conversation was like this place [their home]. You have a picture of Garndolbenmaen and Manhattan side by side, and the conversation itself was just as entertaining.

"Many people talk about how remarkable Jan was, but for me the extraordinary thing was that Jan herself was full of wonder at the world. She could find wonder in the most ordinary things, and that was what made her such a prolific writer and such wonderful company."

‘Chwedl Jan Morris’ is a portrait of an exceptional writer who lived many lives within a single lifetime. It is also a moving tribute from a child to a parent who was a constant

source of stories, wonder and wisdom.

Through Twm’s personal journey and the memories of those who knew and admired Jan, the series celebrates an extraordinary individual whose influence continues to be felt in literature, in Wales and far beyond.