XploreHeritage on Instagram: "England’s longest-lived castle isn’t a ruin — it’s a family home. 📍 Rockingham Castle, Northamptonshire, England. Built soon after the Norman Conquest, Rockingham Castle has been lived in almost continuously for over 900 years. From royal fortress to country house, its walls chart the slow shift from defence to domestic life — a castle that quietly adapted instead of falling into history. Follow for more Stories in Stone — where Britain’s past still stands. #Histor