Dear all,

I would like to do DNA male tests of my and wider family.
We have a family tree (14 branches) written down up to 15 generations for almost all branches.

Relative who takes place as the 15th generation was born in mid-15th century.

The thing is that my and two more branches don't have more than 5 male names written in our family tree.

My goal is to connect my branch to the closest one and to the others.

Is this possible and what DNA tests are required?