In 1817, ownership of Ludwigsburg Palace passed from the House of Württemberg to the government of the Kingdom of Württemberg, which established offices there the next year.
King Wilhelm I chose the Order Hall, the throne room of his father, for the ratification of the kingdom's constitution in 1819.
The palace's first restoration took place at the Alter Hauptbau in 1865.

On 9 November 1918, the Kingdom of Württemberg was dissolved with the abdication of King Wilhelm II.
Ludwigsburg Palace was opened to the public that same year and a new constitution was ratified for the Free People's State of Württemberg on 12 January 1919.
At this time, two apartments at Ludwigsburg Palace were still occupied by members of the House of Württemberg, Duke Ulrich and Princess Olga.
The new state ordered them vacated until 1 April for the ratification.
Ulrich moved out of Ludwigsburg in January, but Olga rented a new suite in the Neuer Hauptbau in February.
She continued to reside at Ludwigsburg in her apartment with her family until her death in 1932.

The Schlosstheater hosted the Württemberg State Theatre for a production of Handel's Rodelinda in 1923, the first musical performance at the palace since 1853.
In the early 1930s, Wilhelm Krämer began hosting the Ludwigsburger Schloßkonzerte (Ludwigsburg Palace Concerts), which comprised six to ten concerts annually from 1933 to 1939.
The palace survived World War II unscathed, though its furnishings were removed in 1944–45 and held at the monasteries at Alpirsbach and Lorch.
It was chosen as the site of the Borkum Island war crimes trial in 1946.
The concerts resumed in 1947 with 34 performances, a record that would not be broken until 1979.
In 1952, the concerts were packed into a single week as the Ludwigsburger Schloßtage ("Palace Days").
They gained national significance when President Theodor Heuss attended a production of Mozart's Titus two years later.
The concerts were named Ludwigsburger Schloßfestspiele in 1966, and were internationally known as the Ludwigsburg Festival.
In 1980, the state of Baden-Württemberg made the festival an official state event.
On 9 September 1962, Charles de Gaulle delivered his "speech to the German youth" in the courtyard of Ludwigsburg Palace to 20,000 people.

Restorations were undertaken in the 1950s and 1960s and again in the 1990s, in time for the palace's tricentenary in 2004.
The anniversary was commemorated by the state government with three new museums.
On 19 October 2011, Minister-President Winfried Kretschmann hosted a reception for the U.S. Army's 21st Theater Sustainment Command at the palace, which was attended by John D. Gardner, former deputy commander of EUCOM, and Gert Wessels, commander of all German troops in Baden-Württemberg.
Ludwigsburg appeared again on Federal postage stamps in the Burgen und Schlösser series.
The 50th anniversary of Charles de Gaulle's speech at Ludwigsburg was celebrated on 22 September 2012 and included appearances by German Chancellor Angela Merkel, Minister-President Kretschmann, and French President François Hollande.
Merkel and Hollande both spoke at the event, the former directly referencing de Gaulle's speech in French.
A painting of Frederick the Great on display was found to be a rare original by Antoine Pesne in November 2017.
Michael Hörrmann – the director of the Staatliche Schlösser und Gärten Baden-Württemberg – valued the portrait at a minimum of €1 million.
Baden-Württemberg's Minister of Finance, Edith Sitzmann visited Ludwigsburg to see the painting and attend a press conference, where she spoke about the cultural importance of Ludwigsburg Palace.

In 2017, 350,642 people visited Ludwigsburg Palace.
By March 2020, Staatliche Schlösser und Gärten Baden-Württemberg plans to have spent €4 million to furnish the Neuer Hauptbau as it would have been during the reign of King Frederick I. To this end, about 500 paintings, 400 pieces of furniture, and 500 lamps, clocks, and sculptures – will be sourced, sorted, and restored.
In 1817, ownership of Ludwigsburg Palace passed from the House of Württemberg to the government of the Kingdom of Württemberg, which established offices there the next year. King Wilhelm I chose the Order Hall, the throne room of his father, for the ratification of the kingdom's constitution in 1819. The palace's first restoration took place at the Alter Hauptbau in 1865.
On 9 November 1918, the Kingdom of Württemberg was dissolved with the abdication of King Wilhelm II. Ludwigsburg Palace was opened to the public that same year and a new constitution was ratified for the Free People's State of Württemberg on 12 January 1919. At this time, two apartments at Ludwigsburg Palace were still occupied by members of the House of Württemberg, Duke Ulrich and Princess Olga. The new state ordered them vacated until 1 April for the ratification. Ulrich moved out of Ludwigsburg in January, but Olga rented a new suite in the Neuer Hauptbau in February. She continued to reside at Ludwigsburg in her apartment with her family until her death in 1932.
The Schlosstheater hosted the Württemberg State Theatre for a production of Handel's Rodelinda in 1923, the first musical performance at the palace since 1853. In the early 1930s, Wilhelm Krämer began hosting the Ludwigsburger Schloßkonzerte (Ludwigsburg Palace Concerts), which comprised six to ten concerts annually from 1933 to 1939. The palace survived World War II unscathed, though its furnishings were removed in 1944–45 and held at the monasteries at Alpirsbach and Lorch. It was chosen as the site of the Borkum Island war crimes trial in 1946. The concerts resumed in 1947 with 34 performances, a record that would not be broken until 1979. In 1952, the concerts were packed into a single week as the Ludwigsburger Schloßtage ("Palace Days"). They gained national significance when President Theodor Heuss attended a production of Mozart's Titus two years later. The concerts were named Ludwigsburger Schloßfestspiele in 1966, and were internationally known as the Ludwigsburg Festival. In 1980, the state of Baden-Württemberg made the festival an official state event. On 9 September 1962, Charles de Gaulle delivered his "speech to the German youth" in the courtyard of Ludwigsburg Palace to 20,000 people.
Restorations were undertaken in the 1950s and 1960s and again in the 1990s, in time for the palace's tricentenary in 2004. The anniversary was commemorated by the state government with three new museums. On 19 October 2011, Minister-President Winfried Kretschmann hosted a reception for the U.S. Army's 21st Theater Sustainment Command at the palace, which was attended by John D. Gardner, former deputy commander of EUCOM, and Gert Wessels, commander of all German troops in Baden-Württemberg. Ludwigsburg appeared again on Federal postage stamps in the Burgen und Schlösser series. The 50th anniversary of Charles de Gaulle's speech at Ludwigsburg was celebrated on 22 September 2012 and included appearances by German Chancellor Angela Merkel, Minister-President Kretschmann, and French President François Hollande. Merkel and Hollande both spoke at the event, the former directly referencing de Gaulle's speech in French. A painting of Frederick the Great on display was found to be a rare original by Antoine Pesne in November 2017. Michael Hörrmann – the director of the Staatliche Schlösser und Gärten Baden-Württemberg – valued the portrait at a minimum of €1 million. Baden-Württemberg's Minister of Finance, Edith Sitzmann visited Ludwigsburg to see the painting and attend a press conference, where she spoke about the cultural importance of Ludwigsburg Palace.
In 2017, 350,642 people visited Ludwigsburg Palace. By March 2020, Staatliche Schlösser und Gärten Baden-Württemberg plans to have spent €4 million to furnish the Neuer Hauptbau as it would have been during the reign of King Frederick I. To this end, about 500 paintings, 400 pieces of furniture, and 500 lamps, clocks, and sculptures – will be sourced, sorted, and restored.
Ludwigsburg Palace