Where can I find more information about the Cat Lord?

I’m writing my own D&D universe and there are two deities I’ve chosen from the official setting to incorporate: Lolth and the Cat Lord

The Cat Lord seems to be depicted as a deity for the Tabaxi in Volo’s Guide to Monsters. I’ve tried to find more information about the church of the Cat Lord, how they work, their beliefs etc. but I haven’t found anything.

Where can I find more information about the Cat Lord, especially focusing on mortal worshipers (organization & hierarchy, rituals, worldview, etc.)?