Domrémy (now Domrémy-la-Pucelle) is in the Lorraine region of France which was contested for a long time with Germany. Other than during the occupation of northern France in the Second World War has the birthplace of the Maid of Orleans ever been in German territory?
Hiya!
This question is actually a much more fascinating one than I originally realised. The shortest, simplest answer is 'No, outside of the German occupation of France during World War Two, Domrémy has never been under the control of the state of Germany.' The state of Germany only formed in 1871. Although it did annex Alsace-Lorraine from France following the Franco-Prussian war, Domrémy did not fall within its borders.
So what if we change the question to 'was Domrémy ever under the control of a German state? This is an entirely different kettle of fish, and I quickly realised, to my surprise, that the answer is 'almost definitely' and I can think of at least one example.
By January 1814, the War of the Sixth coalition might be charitably described as going poorly for Napoleon. He was facing simultaneous invasions from the southwest and northeast of his country, and lacked the forces to effectively counter the overwhelmingly large size of the coalition armies. One of these armies was the Army of Silesia under Gebhard von Blücher, which had crossed the Rhine south of Koblenz and entered France at the start of the year. Its invasion path took it through the French city of Metz, just over 100km from the town, while elements of the Austrian Grand Army under Prince Schwarzenberg passed closer to the town's south. I won't guess as to whether Domrémy itself was occupied by these elements of either of these two Germanic armies, but they certainly controlled the region, and were certainly nearby! I'll do some digging in Jstor and see if I can find any references to the town.
This is, of course, during 1814 alone. It wouldn't surprise me at all if Domrémy was under the influence of one of the German states at some point prior to the dominance of France in the region. This isn't my area so I won't hazard a guess, but I'd love to hear the input of any specialists!
Edit: Unfortunately, a quick peruse doesn't uncover any reference to the town in relevant publications on the 1814 North-eastern France campaign, though I'm hampered here by a damaged tablet. Domrémy was definitely bypassed by the bulk of both armies at some distance - the Austrian force, the closer of the two, passed at least 30-40 kilometers to the south. However, this would be well within the range in which scouts and foragers would have been active, so we definitely can't rule out a Germanic military presence in the town during 1814. Sorry I can't give you a definitive answer, but I hope it's at least a start!