Castrillo De Onielo
Castrillo de Onielo is a municipality located in the province of Palencia, Castile and León, Spain. According to the 2018 census (INE), the municipality has a population of 101 inhabitants.
References
- ^ Municipal Register of Spain 2018. National Statistics Institute.
41°51′N 4°18′W / 41.850°N 4.300°W
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