American Acorns

People: D

Frederik Willem I Frédéric Guillaume Ier de SAXE-ALTENBOURG Wettin Hertog van Saksen-Altenburg or Frederik Friedrich Willem Wilhelm I von Sachsen-Weimar Wettin Hertog van Saksen-Altenburg

1562–1602 · Male · died at 40

Key to the summaries

Male or Female is the sex recorded in the family tree file, not a description of gender; it is left out where the tree does not record it. Age at death is worked out from the dates shown: exact when both dates are exact, otherwise a range (73 or 74) or “about”. It is left out when a date is missing, open-ended or conflicting, or when the dates would make someone older than 110, and when the research has labelled one of the dates Unconfirmed. People who may be living have no summary.

Family data snapshot: 09-24-2026 Read-only collection from the Oak Family Tree. Research incorporated 09-25-2026 (revision 90e7f7b2). Updated periodically.

Overview

Frederik Willem I Frédéric Guillaume Ier de SAXE-ALTENBOURG Wettin Hertog van Saksen-Altenburg or Frederik Friedrich Willem Wilhelm I von Sachsen-Weimar Wettin Hertog van Saksen-Altenburg1562–1602Anna Maria von Pfalz-Neuburg *Find a Grave Verified1575–1643Wife

Explore this person's tree: ancestors Descendants

Family

Parents

Wife: Anna Maria von Pfalz-Neuburg *Find a Grave Verified 1575–1643
Unconfirmed evidence: show why

Why: From the imported family tree; not yet reviewed.

Review: not yet reviewed.

What the labels mean

Life events

Born25 APR 1562, Weimar, Thuringe, Thuringen, Allemagne
Unconfirmed evidence: show why

Why: From the imported family tree; not yet reviewed.

Review: not yet reviewed.

What the labels mean

Died7 JUL 1602, Weimar, Thuringe, Thuringen, Allemagne
Unconfirmed evidence: show why

Why: From the imported family tree; not yet reviewed.

Review: not yet reviewed.

What the labels mean

Living relatives, and relatives whose living status is uncertain, appear here by name only or not at all. Family members can sign in for them and for photos, documents and records that are not public.

From the family tree, with the research incorporated so far. Each relationship and main fact carries a label: Confirmed, Likely or Unconfirmed. Tree entries that nobody has reviewed yet are Unconfirmed. Open a label to see why, the records and when it was reviewed. How sure is each statement?