Maximilian Karl was the fourth child of Karl Alexander, 5th Prince of Thurn and Taxis and his wife Duchess Therese of Mecklenburg-Strelitz, sister of Queen Louise of Prussia. He was born on 3 November 1802 in the so-called Inner Palace of St. Emmeram's Abbey. At the age of nine, Maximilian Karl became Under Lieutenant in Bayer's Fourth Bayerrischen Cheveaulegers-Regiment König. After four years of education at Bildungsinstitut Hofwyl, a Swiss educational institution, he joined the Bavarian army on 25 August 1822. After the death of his father in 1827, Maximilian Karl asked for his dismissal from the army. Afterwards, he continued with his new role as head of the House of Thurn and Taxis, with the advisement and support of his mother.
Marriage and family
Maximilian Karl married Baroness Wilhelmine of Dörnberg, daughter of Ernst, Baron of Dörnberg and his wife Baroness Wilhelmine Henriette Maximiliane of Glauburg, on 24 August 1828 in Regensburg. Maximilian Karl and Wilhelmine had five children:
In their seventh year of marriage, Wilhelmine died at the age of 32. Maximilian Karl mourned her death greatly and constructed the Neo-Gothic mausoleum at St. Emmeram's Abbey for her. Maximilian Karl married secondly to Princess Mathilde Sophie of Oettingen-Oettingen and Oettingen-Spielberg, daughter of Johannes Aloysius III, Prince of Oettingen-Oettingen and Oettingen-Spielberg and his wife Princess Amalie Auguste of Wrede, on 24 January 1839 in Oettingen in Bayern. Maximilian Karl and Mathilde Sophie had twelve children:
Prince Otto of Thurn and Taxis
Prince Georg of Thurn and Taxis
Prince Paul of Thurn and Taxis
Princess Amalie of Thurn and Taxis
Prince Hugo of Thurn and Taxis
Prince Gustav of Thurn and Taxis
Prince Wilhelm of Thurn and Taxis
Prince Adolf of Thurn and Taxis
Prince Franz of Thurn and Taxis
Prince Nikolaus of Thurn and Taxis
Prince Alfred of Thurn and Taxis
Princess Marie Georgine of Thurn and Taxis
In 1843, Maximilian Karl and his family moved to the newly constructed princely castle of the Thurn and Taxis family in Donaustauf, which was completed in the same year as the nearby Walhalla. The castle Donaustauf was completely destroyed during a blaze on 4 March 1880.
Postal career
In 1827, Maximilian Karl was his father's successor as head of the private Thurn-und-Taxis-Post which had its headquarters in Frankfurt am Main. With the annexation of the Free City of Frankfurt by the Kingdom of Prussia in 1866 and the forced sale of Thurn-und-Taxis-Post for three million Thalers ended the era of the Thurn and Taxis family's postal monopoly. The handover took place on 1 July 1867.
Titles, styles, honours and arms
Titles and styles
3 November 1802 – 13 November 1805: His Serene Highness Prince Maximilian Karl of Thurn and Taxis
13 November 1805 – 15 July 1827: His Serene Highness The Hereditary Prince of Thurn and Taxis
15 July 1827 – 10 November 1871: His Serene Highness The Prince of Thurn and Taxis