Act on Proceedings in Family Matters and in Matters of Non-contentious Jurisdiction
The German "Act on Proceedings in Family Matters and in Matters of Non-contentious Jurisdiction" (Gesetz über das Verfahren in Familiensachen und in den Angelegenheiten der freiwilligen Gerichtsbarkeit - FamFG) contains procedural rules for non-contentious probate matters, family matter and other matters in Germany. An English version of this available here:
https://www.gesetze-im-internet.de/englisch_famfg/index.html