The Powys Pioneer Heritage Festival will be held at the iconic Royal Welsh Warehouse, which is also known as the Pryce Jones building, from 2pm on Saturday.
The event celebrating the legacy of Laura Ashley, Robert Owen, Pryce Jones and David Davies is free to everyone.
Organisers say the celebration will take place on the 251st birthday of Newtown-born philanthropist Robert Owen and the 60th anniversary of Laura and Bernard Ashley relocating their business to Carno.
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