Bishopric of Senlis
The former French Catholic diocese of Senlis existed from the sixth century, at least, to the French Revolution. Its see was at Senlis, in the modern department of Oise, in northern France.
It was suppressed by the Concordat of 1801, its territory passing to the diocese of Beauvais.
Coordinates: 49°13′N 2°35′E / 49.21°N 2.59°E
...
Wikipedia