Okay kiddo, so imagine you're playing a game where you're a king or queen. But sometimes, the king or queen might not be able to keep playing the game, like if they got sick or died. In that case, there needs to be someone else who can take over and be the new king or queen. That's where the line of succession comes in.
The line of succession to the former French throne, also known as the Orléanist line of succession, is a list of people who could potentially become the new king or queen if the previous one can't do it anymore. This line of succession starts with a man named Louis-Philippe, who was the last king of France in the 1800s. Louis-Philippe had a son named Ferdinand, who had a son named Philippe, who had a son named Jean.
So right now, the first person in the line of succession is Jean, who is currently in his 50s. After Jean, the next person in line is his son, Prince Charles-Philippe, who is in his 40s. After Prince Charles-Philippe, the next person in line is his son, Prince Jean, who is still a kid. And after Prince Jean, there are a bunch of other relatives who could potentially be in the line of succession if something happened to the people before them on the list.
Now it's important to remember that this is all just a game, and France doesn't actually have a king or queen anymore. The country is a republic, which means they have a president instead. But some people still like to play pretend and talk about who would be the king or queen if things were different. And that's the line of succession to the former French throne, explained like you're five!