When writing the name of an institution which is named after a saint (e.g. Univetsity of Mining and Geology St Ivan Rilski) in capital letters in an official document, should one use
UNIVERSITY OF MINING AND GEOLOGY ST IVAN RILSKI
UNIVERSITY OF MINING AND GEOLOGY St IVAN RILSKI
UNIVERSITY OF MINING AND GEOLOGY SAINT IVAN RILSKI
or something else?
Is the usage of the full "saint" totally incorrect?
(The Cambridge guide to English usage distinguishes usage of St(.) in names of institutions and in names of geographical places, like cities, which makes this question, I think, not a duplicate.)