G2a2b (G-L91) was identified in 2009. Its members include "Ötzi", the so-called Iceman, who died at least 5,000 years BP in the European Alps. G2a2b would seem to encompass a significant proportion of men belonging to G. L91 is found so far in scattered parts of Europe and North Africa and in Armenia. Included within G2a2b are some men with double values for STR marker DYS19, but there are also G2a2 men with this finding who are not G2a2b. The double 19 value situation is not seen in the G2a1 and G2a3 subclades. The L91 mutation is found at 21327383 and rs35474563 on the Y-chromosome. The forward primer is , and the reverse is . The mutation involves a change from C to T. L223 is found on the Y chromosome at rs13304806.