# Hanover commissions Leibniz to write the Guelph genealogy as court historian

Date: 1685

## The fact

From 1685 Leibniz was charged to write the history and genealogy of the House of Guelph, travelling to archives in Germany and Italy. It served Hanover’s electoral and later British succession claims; those politics are named, not erased.

It is one event.

## Context

GWLB and Britannica independently print the historian’s brief. The work remained unfinished at his death. This is not the 1684 calculus paper and not a later British statute he signed.

[Gottfried Wilhelm Leibniz](/people/gottfried-wilhelm-leibniz)’s documented role is bounded by other offices and collaborators named in the sources below. Sharing a field with them is not a reason to drop a documented act, and it is not a reason to assign later consequences done in the name after death.

Conventional years are 1646–1716. Surviving public files are GWLB Nachlass pages, the Akademie-Ausgabe, SEP, and encyclopedias. Leibniz did not typeset those later pages. Later electronic computers are not this life.

Named person as heading of the dated public instrument. Later editors, museums, printers, or offices share publication. Complex where later carriers are the surviving public file.

## Evidence and sources

GWLB’s Leibniz pages and Britannica independently describe the Guelph historical commission.

Official or archival record: Gottfried Wilhelm Leibniz Bibliothek — Leibniz Nachlass pages (https://www.gwlb.de/leibniz; Gottfried Wilhelm Leibniz Bibliothek – Niedersächsische Landesbibliothek).

## Significance

Knowledge-access path via court historiography. High confidence on the commission; medium on unique succession coefficients.

## What is established and what is not

Established: the Guelph history was commissioned from 1685. Not established: that Leibniz drafted the Act of Settlement.

What would change the picture: a contradictory original with a different date or name, or a measured series that can be argued, with lag and alternatives, as a consequence of this instrument rather than of later institutions.

The date is the date of this instrument, not a licence to back-date every later harm or benefit.

Established here: a sourced, dated public instrument with a named contribution by Gottfried Wilhelm Leibniz.

They are not a public rating.

Gottfried Wilhelm Leibniz did not file a later UNESCO form, a later Loeb colophon, or a later museum label as a personal act. A portrait or conventional bust is not this mechanism. Allegation, reconstruction, and established occurrence stay distinct.

## People

- Gottfried Wilhelm Leibniz: https://factrail.ai/people/gottfried-wilhelm-leibniz

## Sources

- https://www.gwlb.de/leibniz
- https://www.britannica.com/biography/Gottfried-Wilhelm-Leibniz

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/gwl-guelph-genealogy