What does OTr stand for?

OTr stands for "Order of the Holy Trinity, Trinitarians"

How to abbreviate "Order of the Holy Trinity, Trinitarians"?

"Order of the Holy Trinity, Trinitarians" can be abbreviated as OTr

What is the meaning of OTr abbreviation?

The meaning of OTr abbreviation is "Order of the Holy Trinity, Trinitarians"

What does OTr mean?

OTr as abbreviation means "Order of the Holy Trinity, Trinitarians"