Slitherine

Hi

This has happened before, very rarely, but is supremely annoying ... in short, playing as Sparta and I have just made Thrace and Cyrene both client-states; neither state was at war with anyone but in the turn the pact was signed "Sparta" - me, declared war on Persia with who had a cooperation agreement and good relations. This has messed up my strategy ... for now at least.

Any ideas?

That's in the DLC right? It might be caused by Athens...

Yes, it is the DLC.