English commanders called their disciplined formation a 'castle of bones' when the Gallowglass locked positions around their lord. These Norse Gaelic mercenaries arrived in Ireland in 1259, hired to counter Anglo-Norman knights. Each warrior wore a mail shirt to the calf, representing a formidable presence in medieval history. ⚔️ Ancient Warriors — AI-reconstructed historical soldiers based on Osprey research and primary sources. 📖 Source: Gallowglass 1250–1600 (Osprey): https://amzn.to/4c4Gq8o