[Garry Shipton (RIP)]

I have,sitting in front of me,a glengarry hat badge my dad traded with a Heeland lad while on leave in Scotland around 1942.It is not pewter..The top has the lion rampant over the King's crown.The main badge has the cross of Scotland interimposed across the badge.The middle of the badge shows the front of a three turreted castleThe motto schroll says "Ominus" and the latin "schroll under the crown says,and it's very hard to read,but I'll try."La VERITATE RELIGIOUSE COMFTO." Does anyone have any further history on this regiment/history/motto
\Best regards