Dii majorum gentium=--The twelve gods of the 15 highest order.
Amphictyon brings the twelve Gods of Egypt into Greece, and these are the Dii magni majorum gentium, to whom the Earth and Planets and Elements are dedicated.
See for Arnold the Chronica majorum et vicecomitum Londoniarum in Liber de antiquis legibus, and Riley's introduction to his translation of Chronicles of the Mayors and Sheriffs of London (1863).
Appropriate ornaments to this immense chamber are the colossal statues of the Dii majorum Gentium.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "majorum" in a variety of sentences. We hope that you will now be able to make sentences using this word.