Weird events in MTW2

[Didz]

I had a weird event happen in my current Turkish campaign.

I had just completed a full campaign victory, (45 provinces including Constantinople and Jerusalem) and opted to continue playing. I had captured all of the African regions and the entire middle east eliminating Egypt and the Moors and my empire reached as far as Northern Italy along the northern med.

Anyway, I suddenly noticed that I had a full Turkish Army sitting on a ford in the middle of Spain. It did not have a general and only had a range of medium value units in it, but my armies had never invaded Spain and had only fought them over the ownership of Madagascar. (As Guru highlights below I mean't to type Marakesh)

So, is this some rogue band of muslim rebels who suddenly decided to swear allegiance to my Sultan or something?