Some info about LATIN
Category
QUOTES AND PHRASES
By the Grace of God is a formulaic phrase used especially in Christian monarchies as an introductory part of the full styles of a monarch. For example in England and later the United Kingdom, the phrase was formally added to the royal style in 1521 and continues to be used to this day. For example, on UK coinage, the abbreviation DG still appears.
Wikipedia contributors, "Dei gratia," Wikipedia, The Free Encyclopedia,
ABOUT THE LATIN LANGUAGE