Ethnicities by Haplogroup (simplified subclades used for specifics)

Check out this helpful site to see which nationalities carry our Taylor Y-DNA haplogroup subgroup I2b:
Ethnicities by Haplogroup

And here is another site that is very helpful for seeing where the I2 Haplogroup spread and is heaviest:
Haplogroup I2 (Y-DNA)

Note that we are probably related to Sir Henry Clinton, who is classified as Neolithic M223, I2a2a; then British M284, I2a2a1 in the Bronze and Iron Ages; and then L1195 heading into the Middle Ages (this will need further research and testing to be verified as such).