Kiera Marshall, the newly elected Plaid Cymru Senedd Member for Caerdydd Penarth, has spoken about how her upbringing in the Townhill area of Swansea profoundly shaped her political views. In an interview, she detailed the inequality she witnessed and the stigma attached to her community, which she says drives her political priorities.
Balancing Motherhood and a Senedd Career
Marshall, who gave birth to a baby daughter months ago, balanced her pregnancy with a competitive internal party selection and a general election campaign. She was elected in May 2026 alongside two other Plaid Cymru colleagues, Anna Brychan and Leti Gonzalez. The three women, all from different backgrounds, were pictured arm in arm at the count.
Marshall said she planned her pregnancy carefully to avoid taking maternity leave as an MS, fearing scrutiny from certain quarters. 'I knew I wanted to start a family and I knew I wanted it to run but I was so worried about the scrutiny of taking time off as an MS to do that, especially with the changes in the Senedd and what I think Reform members might say about that,' she said.
From Townhill to the Senedd
Growing up in Townhill, Marshall's mother was involved in community politics, which instilled in her a sense of activism. 'She set up her own community cooperative, doing research with other women around inclusion of disabled people, young people leaving care, dads who are in prison, those sort of marginalised groups,' Marshall said.
Marshall recalled how her community was often stigmatised. 'My ex-boyfriend's mum wouldn't drive me home once because she was worried about driving a car through the estate,' she said. Despite this, she emphasised the kindness of her neighbours: 'My community was lovely. I lived next door to a baker, she baked me cakes every birthday. We got robbed once and some guy came down the road and was like install a burglar alarm, put my number in it, I'll come down if anything happened.'
Political Awakening and Career
Marshall studied politics at A-level and economics at the London School of Economics. She said the stereotypes followed her there, but this time because she was Welsh. She later worked for Plaid Cymru and the Federation of Small Businesses before deciding to stand for election.
In 2024, she stood in Cardiff West, coming second with 21% of the vote and increasing Plaid's vote share by 12.5%. During that campaign, a drink-driving conviction from 2021 came to light, which she attributed to being a victim of stalking. 'It happened during a very difficult time in my life. I was in a bad place. I had been suffering from post-traumatic stress disorder after being stalked. The perpetrator was later found guilty,' she said at the time.
Priorities for the Senedd Term
Now 28, Marshall has outlined three key priorities for her term: supporting young families and perinatal care, creating opportunities for young people in work and training, and focusing on areas that are 'left behind', like her own hometown. 'I want to give back to where I was,' she said.
