This was the Historia Ecclesiastica Gentis Anglorum, or the Church History of the Anglian People.
This frightful custom must have been pretty general, as we read in the passage quoted, that it was the common vice of those nations: communi gentis vitio.
Vita Liudgeri, describing Bernlef's skill in reciting heroic poetry, one text adds the words more gentis suae.
Hergott's Genealogia diplomatica augustae gentis Habsburgicae (1737) is the imperial genealogy compiled by the emperor's own historiographer.
The footing gentis amicissimae was therefore adopted, as you see in the instruction.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "gentis" in a variety of sentences. We hope that you will now be able to make sentences using this word.