Peter I or Peter Frederick Louis of Holstein-Gottorp (17 January 1755 – 21 May 1829) was the Regent of the Duchy of Oldenburg for his incapacitated cousin Peter Frederick William

Wilhelm, Duke of Oldenburg

Peter Friedrich Wilhelm, Duke of Oldenburg, Wilhelm succeeded his father, Frederick Augustus I, Duke of Oldenburg as the Duke of Oldenburg in 1785. Wilhelm's mother was Princess Ulrike Friederike Wilhelmine of Hesse-Kassel.The title became a Grand Duke in 1815, but Wilhelm never used the elevated...

 from 1785 to 1823, and then served himself as Duke from 1823-1829. He also served from 1785 to 1803 as the last Lutheran Prince-Bishop of Lübeck, until that principality was secularized and joined to Oldenburg. His son, August, or Augustus, was the first Duke of Oldenburg to use the style of Grand Duke

Grand Duke

The title grand duke is used in Western Europe and particularly in Germanic countries for provincial sovereigns. Grand duke is of a protocolary rank below a king but higher than a sovereign duke. Grand duke is also the usual and established translation of grand prince in languages which do not...

 that was granted in 1815 http://www.btinternet.com/~allan_raymond/Oldenburg_Royal_Family.htm. He was the son of Prince Georg Ludwig of Holstein-Gottorp

Holstein-Gottorp

Holstein-Gottorp or Schleswig-Holstein-Gottorp is the historiographical name, as well as contemporary shorthand name, for the parts of the duchies of Schleswig and Holstein that were ruled by the dukes of Schleswig-Holstein-Gottorp. Other parts of the duchies were ruled by the kings of Denmark. The...

 and Sophie Charlotte of Schleswig-Holstein

Schleswig-Holstein

Schleswig-Holstein is the northernmost of the sixteen states of Germany, comprising most of the historical duchy of Holstein and the southern part of the former Duchy of Schleswig...

-Sønderborg

Sønderborg

Sønderborg Municipality , is a municipality in Region of Southern Denmark partially on the Jutland peninsula and partially on the island of Als in south Denmark, at the border with Germany. The municipality covers an area of , and has a total population of 76,236...

-Beck http://www.thepeerage.com/p10933.htm#i109330.

Marriage and Family

On 6 June 1781, he married Duchess Frederica of Württemberg

Duchess Frederica of Württemberg

Duchess Frederica Elisabeth Amalie Auguste of Württemberg was a daughter of Frederick II Eugene, Duke of Württemberg and Friederike Dorothea of Brandenburg-Schwedt.-Family:...

, the second daughter of Frederick II Eugene, Duke of Württemberg, and had the following issue:

Name	|Death	Paul Friedrich August, Grand Duke of Oldenburg Augustus, Grand Duke of Oldenburg Augustus, Grand Duke of Oldenburg was the Grand Duke of Oldenburg from 1829 to 1853.-Family:Augustus was born to the then Prince Peter of Holstein-Gottorp and his wife Duchess Frederica of Württemberg, a daughter of Frederick II Eugene, Duke of Württemberg...	13 July 1783	27 February 1853	married firstly Adelheid of Anhalt-Bernburg-Schaumburg-Hoym; had issue, including Amalia of Oldenburg Amalia of Oldenburg Amalia of Oldenburg, Queen of Greece was the consort of King Otto of Greece . Born the daughter of Augustus, Grand Duke of Oldenburg and Princess Adelheid of Anhalt-Bernburg-Schaumburg-Hoym, she married King Otto on 22 December 1836, in Oldenburg...  who became Queen consort of Greece; secondly, he married Ida of Anhalt-Bernburg-Schaumburg-Hoym; had issue; thirdly, he married Cecilia of Sweden; had issue.
Duke Georg Peter Friedrich of Oldenburg Duke George of Oldenburg Duke George of Oldenburg was a younger son of Peter I, Grand Duke of Oldenburg and his wife Duchess Frederica of Württemberg. He was a son-in-law of Paul I of Russia through marriage to his daughter Grand Duchess Catherine Pavlovna of Russia...	9 May 1784	27 December 1812	married Grand Duchess Catherine Pavlovna of Russia; had issue.

Paul Friedrich August succeeded his father as Grand Duke

Grand Duke

The title grand duke is used in Western Europe and particularly in Germanic countries for provincial sovereigns. Grand duke is of a protocolary rank below a king but higher than a sovereign duke. Grand duke is also the usual and established translation of grand prince in languages which do not...

 of Oldenburg, the first of the House of Holstein-Gottorp

House of Holstein-Gottorp

The House of Holstein-Gottorp, a cadet branch of the Oldenburg dynasty, ruled Sweden from 1751 until 1818, and Norway from 1814 to 1818.In 1743 Adolf Frederick of Holstein-Gottorp was elected crown prince of Sweden as a Swedish concession to Russia, a strategy for achieving an acceptable peace...

 to use the elevated style. Peter Frederick Louis was buried

Burial

Burial is the act of placing a person or object into the ground. This is accomplished by excavating a pit or trench, placing an object in it, and covering it over.-History:...

 in The Ducal (Herzogliches) Mausoleum

Mausoleum

A mausoleum is an external free-standing building constructed as a monument enclosing the interment space or burial chamber of a deceased person or persons. A monument without the interment is a cenotaph. A mausoleum may be considered a type of tomb or the tomb may be considered to be within the...

 in the Churchyard

Churchyard

A churchyard is a patch of land adjoining or surrounding a church which is usually owned by the relevant church or local parish itself. In the Scots language or Northern English language this can also be known as a kirkyard or kirkyaird....

 of in Oldenburg

Oldenburg

Oldenburg is an independent city in Lower Saxony, Germany. It is situated in the western part of the state between the cities of Bremen and Groningen, Netherlands, at the Hunte river. It has a population of 160,279 which makes it the fourth biggest city in Lower Saxony after Hanover, Braunschweig...

.

Ancestry