I found H.A. Niemeyer's
Collectio confessionum in Ecclesiis reformatis publicatarum (1840) online which includes the German edition (p. 390ff) and Latin edition (p. 428ff) of the Heidelberg Catechism, which may be of interest.
See
here.
Also, for good measure (although a poor edition) and for reference purposes, his appendix, published 9 months later, which includes the Westminster Standards in Latin (see
here).
__________________
Andrew Myers
Husband of Jessica, Father of Jackson, Katie and Samuel
Member, Presbyterian Reformed Church of Northern Virginia
Warrenton, VA USA
Editor,
The Matthew Poole Project
"Let your Morning Thoughts, and your last Evening Thoughts, be what shall become of you to all Eternity." -- Matthew Poole