| Joseph Johann Adam | |
| Duke of Troppau and Jägerndorf | |
| Succession: | Prince of Liechtenstein |
| Reign: | 11 October 1721-17 December 1732（） |
| Predecessor: | Anton Florian |
| Successor: | Johann Nepomuk |
| Birth Place: | Vienna, Archduchy of Austria |
| Death Place: | Valtice, Kingdom of Bohemia |
| Burial Place: | Church of the Nativity of the Virgin Mary, Brno |
| Spouse: | Maria Gabriele of Liechtenstein Marianne of Thun-Hohenstein Maria Anna of Oettingen-Spielberg Maria Anna Kottulinska |
| Full Name: | Josef Johann Adam |
| House: | Liechtenstein |
| Father: | Anton Florian, Prince of Liechtenstein |
| Mother: | Countess Eleonore Barbara of Thun-Hohenstein |
| Religion: | Roman Catholic |
Joseph Johann Adam (25 May 1690 - 17 December 1732) was the Prince of Liechtenstein from 1721 to his death.[1]
Born in Vienna, he was the only living son of Anton Florian, Prince of Liechtenstein and Eleonore Barbara von Thun und Hohenstein. Johann Josef Adam served under his father for a short time during the War of the Spanish Succession and later fought against the French under the Duke of Marlborough. After the Treaty of Utrecht he became Imperial Privy Counsellor in Vienna.
He was the 661st Knight of the Order of the Golden Fleece in Austria. He died in Valtice in 1732.
On 1 December 1712, Joseph married firstly his cousin Maria Gabriele, Princess of Liechtenstein (12 July 1692 – 7 November 1713), daughter of Hans-Adam I. They had one child:
On 3 February 1716, Joseph married secondly Marianne, Countess of Thun-Hohenstein (27 September 1698 – 23 February 1716), but his new bride died only 20 days after the wedding.
On 3 August 1716, in Vienna, Joseph married thirdly to Maria Anna Katharina, Countess of Oettingen-Spielberg (21 September 1693 – 15 April 1729), daughter of Francis Albert, 1st Prince of Oettingen-Spielberg in 1734 (previously Count).[2] They had five children:
On 22 August 1729, Joseph married fourthly to Maria Anna, Countess Kottulinsky von Kottulin (12 May 1707 – 6 February 1788). They had two children: