Madonna con Bambino

So, I went to Italy recently, and was walking through a museum. It was amazing to see all this art that was over 500 years old. There was a little too much of it to appreciate it well, but, it was, nonetheless, amazing. But, I noticed that many, many, many of the pictures were simply titled "Madonna con Bambini". So, I started taking pictures of them. Here is a collection of several things that were thus entitled. They vary very much in how attractive they are, how anatomically correct they are, how many other people are in the work and from what time period (many contain additional Saints from other time periods) and many other such things. However, it was impressive to me that hundreds of years ago it was a popular thing to carve and paint the Christ-child and his mother. Note: All but one of these are original works that were in a museum. The photographs are bad, but the paintings were good. However, one of these pictures was hanging over my bed in my second hotel. Can you guess which one?