Alexandra, Princess of Leiningen
Princess Alexandra of Hanover , Duchess of Brunswick-Lüneburg, Princess of Leiningen (born 18 February 1959), is the wife of Andreas, 8th Prince of Leiningen.
Born in Hanover, Lower Saxony, Germany, Alexandra is the youngest daughter of Ernest Augustus, Prince of Hanover (1914–1987), and his wife, Princess Ortrud of Schleswig-Holstein-Sonderburg-Glücksburg (1925–1980).
Her eldest brother is Ernst August, Prince of Hanover, current head of the House of Hanover and her sister-in-law
is Princess Caroline of Monaco.
Emich, 5th Prince of Leiningen
Emich, 5th Prince of Leiningen( 18 January 1866 – 18 July 1939) was the son of Ernst Leopold, 4th Prince of Leiningen.
He was 5th Prince of Leiningen from 1904 to 1918, and afterwards titular Prince of Leiningen from 1918 until his death.
Peter Burroughs
Peter Burroughs( born 27 January 1947) is a British television and film actor, the director of Willow Management.
He is the father- in- law of actor and TV presenter Warwick Davis.
Andreas, Prince of Leiningen
Andreas, Prince of Leiningen ("Andreas Fürst zu Leiningen"; born 27 November 1955) is the current head of the Princely House of Leiningen.
He is the son of Emich Kyrill, Prince of Leiningen, and Duchess Eilika of Oldenburg.
His older brother Prince Karl Emich of Leiningen lost his rights to succeed as head of the house as a result of his unequal second marriage.
His paternal grandmother, Grand Duchess Maria Kirillovna of Russia, was the eldest daughter of Kirill Vladimirovich, Grand Duke of Russia (first claimant to the throne of Russia and a grandson of Alexander II of Russia) and Princess Victoria Melita of Edinburgh (granddaughter of Alexander II of Russia).
Because of this, he is in the line of succession to the former Russian throne.
His great-great-great grandfather, Carl Friedrich Wilhelm Emich, 3rd Prince of Leiningen, was the elder half-brother of Queen Victoria.
Through his father, he is also a direct descendant (specifically a great-great-great-grandson) of Queen Victoria, through her granddaughter, Princess Victoria Melita of Edinburgh, whose second husband was Grand Duke Kirill Vladimirovich.
Because of this, he is in the line of succession to the British Throne.
He married Princess Alexandra of Hanover on 5 October 1981.
They have three children:
Carl Friedrich Wilhelm, 1st Prince of Leiningen
Carl Friedrich Wilhelm, Prince of Leiningen( 14 August 1724 – 9 January 1807) was a German nobleman.
( See" Fürst" for the difference between it and the other princely title," Prinz".)
He was the eldest son of Friedrich Magnus, Count of Leiningen- Dagsburg- Hartenburg and his wife Countess Anna Christine Eleonore von Wurmbrand- Stuppach, and succeeded his father on the latter's death, 28 October 1756.
On 3 July 1779, he was made a Prince of the Holy Roman Empire, becoming the first Prince of Leiningen.
On 24 June 1749, he married his first cousin Christiane Wilhelmine Luise, daughter of Wilhelm Carl Ludwig, Count of Solms- Rödelheim and Assenheim, by his wife Countess Maria Margareta Leopolda von Wurmbrand- Stuppach.
She died on 6 January 1803, having borne him a son and three daughters:
In 1801, he was deprived of his lands on the left bank of the Rhine, namely Hardenburg, Dagsburg and Durkheim, by France, but in 1803 received the secularized Amorbach Abbey as an ample compensation for these losses.
Hitherto his titles were:" Imperial Prince of Leiningen, Count palatine of Mosbach, Count of Düren, Lord of Miltenberg, Amorbach, Bischofsheim, Boxberg, Schüpf and Lauda.
A few years later, the short- lived Principality of Leiningen at Amorbach was mediatized.
Prince Karl Emich of Leiningen
Prince Karl Emich of Leiningen( born 12 June 1952), also known by his Orthodox Russian name Nikolai Kirillovich Romanov( Никола́й Кири́ллович Рома́нов) and his pretended regnal name Emperor Nicholas III, is the eldest son of Emich, 7th Prince of Leiningen and his wife, Duchess Eilika of Oldenburg, and is an elder brother of Andreas, 8th Prince of Leiningen.
He is a claimant to the defunct throne of the Russian Empire, held until 1917 by the Imperial House of Romanov, as a grandson of Grand Duchess Maria Kirillovna( 1907 – 1951), eldest child of Grand Duke Kirill Vladimirovich, who claimed the Russian crown from exile in 1924.
He is a great- great- grandson of Emperor Alexander II of Russia and grand nephew of Grand Duke Vladimir Kirillovich of Russia.
In 2013, the Monarchist Party of Russia declared him the primary heir to the Russian throne upon his conversion from Lutheranism to Eastern Orthodox Christianity, and in 2014 announced the formation of the" Imperial Throne", wherein Karl Emich had agreed to assume imperial dignity as" Emperor Nicholas III".
He also claimed the throne of Leiningen in the past.
Karl, Prince of Leiningen
Karl, Prince of Leiningen( 13 February 18982 August 1946) was the son of Emich, 5th Prince of Leiningen.
He was the 6th Prince of Leiningen from 1939 until his death.
Carl, 3rd Prince of Leiningen
Carl, Prince of Leiningen, KG
( Carl Friedrich Wilhelm Emich; 12 September 1804 – 13 November 1856) was the third Prince of Leiningen and maternal half- brother of Queen Victoria.
Leiningen served as a Bavarian lieutenant general, before he briefly played an important role in German politics as the first Prime Minister of the" Provisorische Zentralgewalt" government formed by the Frankfurt Parliament in 1848.
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
Princess Feodora of Leiningen
Princess Feodora of Leiningen (Anna Feodora Auguste Charlotte Wilhelmine; 7 December 1807 – 23 September 1872) was the only daughter of Emich Carl, Prince of Leiningen (1763–1814), and Princess Victoria of Saxe-Coburg-Saalfeld (1786–1861).
Feodora and her older brother Carl, 3rd Prince of Leiningen, were maternal half-siblings to Queen Victoria of the United Kingdom.
She is a matrilineal ancestress of Carl XVI Gustaf of Sweden and of Felipe VI of Spain.

Question: Who is the father-in-law of Andreas, Prince Of Leiningen?
Answer: Ernest Augustus, Prince of Hanover