Prince Joseph Wenzel of Liechtenstein, Count of Rietberg (Joseph Wenzel Maximilian Maria von und zu Liechtenstein), styled His Serene Highness (born 24 May 1995 in London), is the eldest child of Prince Alois of Liechtenstein, the Regent and Hereditary Prince of Liechtenstein, and his wife Princess Sophie of Bavaria, Duchess in Bavaria. He is second in the line of succession to the Liechtensteiner throne and third in line in the Jacobite line of succession to the thrones of England, Scotland, Ireland and France. He is the first Jacobite heir born in the British Isles since 1688.
The prince has three younger siblings: Princess Marie-Caroline (b. 1996), Prince Georg-Antonius (b. 1999) and Prince Nikolaus Sebastian (b. 2000).
Joseph Wenzel is named in honour of his ancestor Josef Wenzel, Reigning Prince of Liechtenstein from 1712 to 1718 and from 1748 to 1772. He bears the name Maximilian in honour of his maternal grandfather Prince Max, Duke in Bavaria, and his paternal uncle and godfather, Prince Maximilian of Liechtenstein. In accordance with the custom of several Roman Catholic dynasties in Europe, including that of both his parents, he was given the name Maria in honour of the Virgin Mary.