Wow. I just found out I'm ROYALTY over a website...?

This isnt a troll. Ok. I was doing some work, and I found out I am royalty. So, basically, Macbeth (of scotland) killed my grandfather. Does this mean I am the rightful heir? MACBETH'S DECENDENTS ARE RULING SCOTLAND RIGHT NOW ! Does this mean I am the rightful heir? I am not macbeth's decendent. What should I do?