I wanted to add a full other family to one of my family trees, while this family is unrelated in any way beyond a few friendships, it's important for my work and easier to have them in the same place. I did this by choosing a random person and making them the 'friend' of the furthest-back person I know of in this family, which for me made it easier to follow the family tree all the way down instead of working off the youngest and going up.
The problem is that this random person is born about a hundred years after the person I made them the friend of dies. It annoys me to have them connected, but even though I have made people later on in the family connected to others in the original tree, I can't remove the connection. Is there any way to solve this?