Okay buddy, so a really long time ago, there was a place called Rome where lots of people lived. Some of these people believed in a religion called Catholicism, which was all about God and Jesus and stuff. However, there was also a really powerful government called the Italian government that didn't like the Catholic religion and wanted the people to follow a different one.
This caused a big argument between the Catholic Church and the Italian government, which became known as the "Roman Question". Basically, the question was whether the Catholic Church or the Italian government should have control over Rome and surrounding areas.
The situation got more complicated because Rome was actually the home of the Catholic Church and the Pope's official residence. So you can imagine how difficult it was for the Church to give up this important place to the Italian government.
After years of arguing and fighting, the Roman Question was eventually resolved in 1929 when a treaty was signed between the Catholic Church and the Italian government. This treaty created a separate city-state called Vatican City that would be independent from Italy and governed by the Pope.
So, to sum up, the Roman Question was a disagreement between the Catholic Church and the Italian government about who should control Rome, which was the home of the Catholic Church. It was resolved in 1929 with the creation of Vatican City, which is now the smallest independent nation in the world.