A native of Umbar who had married and settled in Pelargir, Baldaerion pursued a successful career in the Royal Navy under Castamir of Pelargir, Captain of the Ships. When his commander joined the rebel forces, Baldaerion followed suit without a second thought. His loyalties were to himself and the men who would control his advance- ment through the ranks rather than to Gondor and her rightful sovereign. Baldaerion wore a tabard bearing the White Ship that identified Castamir's forces.