Maria Pavlovna, Sr. -- Miechen.
Born: 14 May 1854 as Marie Alexandrine Elisabeth Eleonore. Daughter of Freiderich Franz II of Mecklenburg-Shwerin and his wife, Augusta Reuss-Köstritz.
On August 28, 1874, Marie married HIH the Grand Duke Vladimir Aleksandrovich of Russia, third son of TIM Tsar Aleksandr II and Tsaritsa Maria Aleksandrovna. Together, they had 4 sons: Aleksandr, Boris, Kyrill and Andrei and one daughter, Elena.
Aleksandr, I don't know what happenend to him.
Boris married a commoner I believe and Andrei married Nicholas II's former misteress, Ballerina Mathilde Kschessinska and had one son, Vladimir.
Kyrill married his first cousin, Princess Victoria Melita of Edinburgh, was by then had divorced her first husband (and paternal first cousin), Grand Duke Ernst-Ludwig of Hesse. (they had a daughter Elizabeth, born in 1895, but she died of illness in 1903. Ernie and "Ducky" divorced in 1901.) Victoria Melita and Kyrill had three children: Marie, Kyra and Vladimir. It is Vladimir's descendants that now claim rights to the Imperial Russian throne; His only daughter Maria and her son Grigory Mikhailovich.
Miechen's only daughter Elena, married HRH Prince Nicholas of Greece & Denmark. They had three daughters: Olga, Elizabeth and Marina.
Olga married Prince Paul of Yugoslavia in October of 1923. Olga and Paul (called "Pacey"), had three children: Alexander, Nikolai and Elizabeth.
Elizabeth married Count Karl Theodore zu Torreing-Jettenbach. They had two children: Hans born in 1935 and Helene born in 1937.
Princess Marina married HRH George, Duke of Kent in 1934. Their three children (all still living), are Edward, Alexandra and Michael. Edward, I believe, is the current Duke of Kent.
Information can be found at:
http://www.answers.com/main/ntquery?method=4&dsid=2222&dekey=Princess+Marina%2C+Duchess+of+Kent&gwp=8&curtab=2222_1&linktext=Princess%20Marina
Miechen didn't approve of people that weren't "royal" in her mind. She didn't get along with Empress Aleksandra (Alix of Hesse), and was disgusted with Andrei's marriage to MK. Her daughter, Grand Duchess Elena, was alot like her. They thought the same way about people. For example, both Elena and Miechen thought of Nicholas' (Elena's husband) sister-in-law, Princess Alice, was "below" them because she had been born a Serene Highness. Exp: HSH Princess Alice von Battenburg, daughter of Victoria, Marchioness of Milford Haven and Prince Louis von Battenburg.