Meanings of great-grandparent's brother in English

Attalus III had done so, and then my great-granduncle Ptolemy Apion in Cyrene had followed suit.

The address was one occupied by my great-granduncle, John J Healy, who emigrated from the midlands of Ireland in the early 1900s.

A tomb there holds the remains of Bishop John Kearney, who was Mr Obama's great-great-great-granduncle and became provost of Trinity College in 1799.