Question: Cantabrian mythology was likely diluted by what Iron Age mythology?

<P0-S0> Cantabrian mythology refers to the myths, teachings, and legends of the Cantabri, a pre-Roman Celtic people of the north coastal region of Iberia (Spain). <P0-S1>  Later, the ascendancy of Christendom absorbed or ended the pagan rites of Cantabrian, Celtic and Roman mythology leading to a syncretism. <P0-S2>  Some relics of Cantabrian mythology remain. <P0-S3>  Over time, Cantabrian mythology was likely diluted by Celtic mythology and Roman mythology with some original meanings lost. <SEP> <P1-S0>  Like other Iron Age Europeans, the early Celts maintained a polytheistic mythology and religious structure. <P1-S1> Celtic mythology is the mythology of Celtic polytheism, the religion of the Iron Age Celts. <P1-S2>  Among Celts in close contact with Ancient Rome, such as the Gauls and Celtiberians, their mythology did not survive the Roman Empire, their subsequent conversion to Christianity, and the loss of their Celtic languages. <P1-S3>  It is mostly through contemporary Roman and Christian sources that their mythology has been preserved. <P1-S4>  The Celtic peoples who maintained either their political or linguistic identities (such as the Gaels in Ireland and Scotland, the Welsh in Wales, and the Celtic Britons of southern Great Britain and Brittany) left vestigial remnants of their ancestral mythologies, put into written form during the Middle Ages. <SEP> <P2-S0> Muna (Mona, Muma) is one of the goddesses of Celtic polytheism, associated heavily with the written word. <P2-S1>  She is also the largest influence and likely synonymous with multiple fae whose folk roots are a religion of the Iron Age Celts. <P2-S2>  These fae's most notable influence was as a protector of lost children. <P2-S3>  Like other Iron Age Europeans, the early Celts maintained a polytheistic mythology and religious structure. <P2-S4>  Among Celts in close contact with Ancient Rome, such as the Gauls and Celtiberians, their mythology did not survive the Roman empire, their subsequent conversion to Christianity, and the loss of their Celtic languages. <P2-S5>  It is mostly through contemporary Roman and Christian sources that their mythology has been preserved. <P2-S6>  The Celts peoples who maintained either their political or linguistic identities (such as the Gaels and Brythonic tribes of Great Britain and Ireland) left vestigial remnants of their forebears' mythologies, put into written form during the Middle Ages. <P2-S7>  Muna was the inspiration for the naming of the province Munster in Ireland. <SEP> <P3-S0> Cuélebre (Asturian) or Culebre (Cantabrian), is a giant winged serpent-dragon of the Asturian and Cantabrian mythology, that lives in a cave, guards treasures and keeps "xanas" / "anjanas" as prisoners. <P3-S1>  Although they are immortal, they grow old as the time goes by and their scales become thick and impenetrable, and bat wings grow in their bodies. <P3-S2>  They don't usually move, and when they do it, it is in order to eat cattle and people. <P3-S3>  One can kill the cuélebre giving him as meal a red-hot stone or a bread full of pins. <P3-S4>  Its spit it is said to turn into a magic stone which heals many diseases.