Okay kiddo, so Lombards were a group of people who lived a long, long time ago in a place called Italy. They were named after a king named Lombard, who led them to Italy from a faraway land.
Now, the Lombards were really good at fighting, and they ended up conquering a lot of Italy. They even made their own kingdom there, called the Lombard Kingdom. It was ruled by Lombard kings.
But here's the thing, the Lombards were also really good at something called banking. That means they would take care of other people's money and keep it safe. They would even give out loans, which means they would lend people money and then the people would have to pay it back with interest.
The Lombards were actually really good at banking that their name became a common term for a type of loan called a "Lombard loan." This is a special kind of loan where you use something valuable, like jewelry or a watch, as collateral to get the money you need. If you can't pay the loan back, the Lombard would keep the valuable thing as payment.
So, kiddo, in short, the Lombards were a group of people who lived a long time ago and were originally from a faraway land. They were really good at fighting and even created their own kingdom in Italy. They were also really good at banking and lending money, which is why their name became associated with a certain kind of loan called a Lombard loan.