Magenheim, Rheinpfalz - where was it?

Question

Listed as Magenheim, Rheinpfalz. Also, listed as Magenheim, commune of Alzey. Where was it?

Answer 1

There's https://de.wikipedia.org/wiki/Schloss_Magenheim, but Rheinpfalz and Alzey sound like it might be https://de.wikipedia.org/wiki/Mauchenheim, which belongs to Alzey today.

Comments

But Alzey is in Rheinhessen and not in the Pfalz.

---

But Mauchenheim was:

"Mauchenheim gehörte zur Kurpfalz bzw. ab 1777 zu Kurpfalz-Bayern, wurde 1798–1814 französisch, und kam danach zur bayrischen Provinz Rheinpfalz."

Mauchenheim belonged to Kurpfalz, after 1777 called Kurpfalz-Bayern, became French from 1798 to 1814 and finally came to the bavarian province Rheinpfalz.

On the other hand, it belongs to Alzey-Worms county today.

---

Spoken in Southern Bayrisch Dialect, would Mauchenheim have sounded like Magenheim in US?

---

It's possible, very much so even. The local dialect would be Pfälzisch and in that dialect -au- becomes -aa-.