The Kingdom of Croatia (Habsburg) was a place a long time ago where a group of people lived, and they had a special person or ruler called the King. This place was also owned by another group of people named the Habsburgs who were in charge of making rules and keeping the Kingdom safe.
The King made sure that all the people who lived in the Kingdom were happy and had the things they needed like food, water, and a place to live. The Habsburgs helped the King do this by making laws that everyone had to follow and protecting the Kingdom from enemies who might try to hurt them.
The Kingdom had many different places where people could live, each with its own special things like buildings, hills, and rivers. Some of these places were big cities where there were lots of people living there, like in Zagreb, Croatia's capital city. Others were smaller villages where fewer people lived, and they worked together to take care of their crops and animals.
Even though the Kingdom of Croatia (Habsburg) doesn't exist anymore, we can learn about it and remember the people who lived there a long time ago. By studying the past, we can better understand how people lived and what their lives were like, and we can use that knowledge to make the present and future better for everyone.