Small Sword Dutch or French

[Cathey]

Hi

Picked up this small sword recently and whilst the blade id hexagonal not uncommon on some Dutch examples, this style also pops up on British, German and French small swords. The blade is engraved with the motto Pro Deo Et Religione vera (latin: For God and the true religion). This sounds rather catholic to me which is making me lean towards France, Italy or perhaps Spain. It is unmarked silver with an ivory grip that appears original to the sword, no signs of it having been taken apart. I am thinking it probably dates around 1740.

Nay thoughts on its age and origin considering the religious slogan would be most appreciated.

Cheers Cathey