What is st. james cross?

St. James cross, also known as the cross of Santiago or the Bourgogne cross, is a symbol associated with the apostle James the Great and the Order of Santiago, a medieval Spanish fraternal order. It is a red cross with arms that widen at the ends, resembling the letter "T", on a white background. This cross is often found in the coats of arms of Spanish and Hispanic-American provinces, cities, and regions, as well as in numerous churches, cathedrals, and chapels. The symbol is also used by pilgrims walking the Camino de Santiago, a network of pilgrimage routes leading to the shrine of St. James in Santiago de Compostela, Galicia, Spain. The origins of the St. James cross are uncertain, but it is believed to have been inspired by the golden cross that appeared in the sky during the Battle of Clavijo in 844 AD, which was a decisive victory for Christian forces over Muslim Moors.