The funny thing is that some medieval bricklayer made a conscious choice here, he could have put that brick paw-print down and made a flawless floor. Now, here we are getting a chuckle out of some unknown bricklayer’s little gag centuries later.

I’m also wondering if those are not fake prints. They look pretty deep. I don’t think a cat walking on drying bricks would leave such deep marks.

To me they look like easter eggs left by the brick layer.

Maybe they’re deep because of water erosion from rains, those bricks look pretty polished.

I don’t think the bricks are that old. Maybe a few hundred years or so

Also, wouldn’t water erosion make them less deep not more, due to generally smoothing the stone?