Grandchild might be a stretch. One human generation is roughly 30 years. 200/30 is 6.6, so there need to be at least 6 or 7 generations. He could be your great great great great great grandfather.
To work out generations you count the number of G's in the relation and add 1. Grandfather = 1 g, so 2 generations before you.
Awesome sauce that can be done
Grandchild might be a stretch. One human generation is roughly 30 years. 200/30 is 6.6, so there need to be at least 6 or 7 generations. He could be your great great great great great grandfather.
To work out generations you count the number of G's in the relation and add 1. Grandfather = 1 g, so 2 generations before you.
Awesome sauce that can be done