Baptism first name (or confirmation middle name) for special devotion to the Holy Trinity?

Catholics almost always have first and second names indicating devotion to some saints, expecting special help and intercession from them. I feel, that there is no good saint which can be my patron saint and intercessor and who can I refer in my middle name. Instead I would like to have middle name which indicates my special devotion to the Holy Trinity. Is there such middle name? There is name Trinity, but it is rarely used as a man name (it would be interesting to know the reason). And then there is first name Emmanuel (God is with us, there is also form with one 'm') but I feel that there can be name that is still more closed to the God and that can have some more trinitarian reference. Is there such name for baptism (as the first name) or confirmation (as the middle name)?