
The Mendelssohn family are the descendants of the German Jewish philosopher Moses Mendelssohn and include his grandson the composer Felix Mendelssohn.
Moses Mendelssohn was a significant figure in the Age of Enlightenment in Germany. Of his 6 children, only Recha and Joseph, retained the Jewish faith. Abraham Mendelssohn, because of his conversion to christianity, adopted the surname Bartholdy at the suggestion of his wife's brother, Jakob Salomon Bartholdy, who had adopted the name from a property owned by the Salomon family.

In 1795 the eldest son Joseph Mendelssohn established the bank Mendelssohn & Co. in Berlin and his brother Abraham joined the company in 1804. Many members of the family worked for the bank until it was forced to shut down in 1938. In 2004 relatives of the banker Paul von Mendelssohn-Bartholdy (1875-1935), lead by his great-nephew Prof Julius H Schoeps (born 1942), tried to reclaim paintings once owned by him and later sold in the 1940s by his widow in breach of his will.
The family members include:
* Moses Mendelssohn (1729–1786), philosopher, married Fromet Gugenheim (1737-1812); 6 children
* Dorothea Mendelssohn (1763-1839), married (i) Simon Veit, (ii) Friedrich von Schlegel
* Jonas Veit (1790-1854)
* Philipp Veit (1793-1877)
* Recha Mendelssohn (1767–1831)
* Joseph Mendelssohn (1770–1848), banker
* Benjamin (Georg) Mendelssohn (1794–1874), geographer
* Alexander Mendelssohn (1798–1871), banker
* Marie Mendelssohn (1822–1891), married Robert Warschauer (1816–1884), banker
* Anna Warschauer (1841–1866), married Ludwig Passini (1832–1903), painter
* Marie Warschauer (1855-1906), married Ernst von Mendelssohn-Bartholdy (1846–1909) see below (A)
* Margarete Mendelssohn (1823–1890), married Otto Georg Oppenheim (1817–1909), jurist
* Hugo Oppenheim (1847–1921), banker, married Anna Oppenheim (1849–1931)
* Else Oppenheim (1873–1945), married Josef Block (1863–1943), painter
* Robert Hugo Oppenheim, banker, married Charlotte Simon
* Anna Luise Block (1896–1982), publicist; married: (ii) Heinrich Hauser (1901–1955), writer; (iii) Alfred Winslow Jones (1900–1989), hedge fund pioneer
* Franz Oppenheim (1852–1929), chemist
* Clara Oppenheim (1861–1944), married Adolf Gusserow (1836–1906), gynecologist
* Franz von Mendelssohn (1829–1889), banker
* Robert von Mendelssohn (1857–1917), banker, married Giulietta Gordigiani, pianist
* Eleonora von Mendelssohn (1900–1951), actress, married Martin Kosleck, actor
* Francesco von Mendelssohn (1901–1972), cellist, theatre director
* Franz von Mendelssohn (1865–1935), banker, married Maria Westphal (1867-1957), see below (B)
* Lilli von Mendelssohn (1897–1928), violinist, married Emil Bohnke, violist and composer
* Robert-Alexander Bohnke (1927–2005), pianist
* Robert von Mendelssohn (1902–1996), banker
* Clara Mendelssohn (1840–1927), married Carl Friedrich Otto Westphal (1833–1890), psychiatrist
* Alexander Carl Otto Westphal (1863–1941), neurologist
* Anna Westphal (1864–1943), married Eduard Sonnenburg (1848–1915), doctor
* Marie Westphal (1867–1957), married Franz von Mendelssohn (1865–1935), see above (B)
* Henriette (Maria) Mendelssohn (1775-1831)
* Abraham Mendelssohn Bartholdy (1776-1835), banker, married Lea Salomon, granddaughter of Daniel Itzig; 4 children
* Fanny Mendelssohn (1805-1847) married Wilhelm Hensel (1794-1861)
* Sebastian Ludwig Felix Hensel (1830-1898) married Julie von Adelson
* Cécile Hensel (1858-1928) married Friedrich Leo (1851-1914)
* Paul Hensel (1860-1930), philosopher
* Kurt Hensel (1861-1941), mathematician
* Albert Hensel (1895–1933), law professor
* Charlotte Hensel (1896–1990), married Werner Bergengruen (1892–1964), novelist
* Felix Mendelssohn (1809-1847), composer married Cécile Charlotte Sophie Jeanrenaud (1817–1853)
* Karl Mendelssohn Bartholdy (1838-1897), historian
* Cécile von Mendelssohn Bartholdy (1870-1943), married Otto von Mendelssohn Bartholdy (1868-1949), see below (C)
* Albrecht Mendelssohn Bartholdy (1874-1936), law professor, married Dorothea Wach (1875-1949), see below (D)
* Marie Mendelssohn Bartholdy (1839-1897)
* Paul Mendelssohn Bartholdy (1841-1880), chemist
* Otto von Mendelssohn Bartholdy (1868-1949), banker, married Cécile Mendelssohn Bartholdy (1870-1943), see above (C)
* Paul Mendelssohn Bartholdy (1879-1956), chemist
* Felix Mendelssohn Bartholdy (1843–1850)
* Elisabeth Mendelssohn Bartholdy (1845-1910) married Adolf Wach
* Felix Wach (1871-1943)
* Joachim Wach (1898-1955)
* Dorothea Wach (1875-1949) married Albrecht Mendelssohn Bartholdy (1874-1936), see above (D)
* Rebecka Mendelssohn (1811-1858) married Peter Gustav Lejeune Dirichlet (1805–1859), mathematician
* Paul Mendelssohn-Bartholdy (1812–1874), banker
* Ernst von Mendelssohn-Bartholdy (1846–1909), banker, married Marie Warschauer (1855–1906), see above (A)
* Katharine von Mendelssohn-Bartholdy (1870–1943)
* Charlotte von Mendelssohn-Bartholdy (1871–1961)
* Paul von Mendelssohn-Bartholdy (1875–1935), banker
* Enole Marie von Schwerin (1879–1947), married Albert Constantin von Schwerin (1870–1956), diplomat
* Marie Busch (1881–1970), married Felix Busch (1871–1938), state official
* Dorothea Busch (1915–1996), married Hans-Joachim Schoeps (1909–1980), theologian
* Julius H. Schoeps (born 1942), historian
* Alexander von Mendelssohn-Bartholdy (1889–1917)
* Nathan Mendelssohn (1781-1852) instrument maker, married Henrietta Itzig, cousin of Lea Soloman and granddaughter of Daniel Itzig
* Arnold Mendelssohn (1817-1854)
* Ottilie Mendelssohn (1819-1848) married Ernst Kummer (1810-1893), mathematician
* Marie Elisabeth Kummer (1842-1921) married Hermann Schwarz (1843-1921), mathematician
* Wilhelm Mendelssohn (1821-1866)
* Arnold Mendelssohn (1855-1933) composer
From http://en.wikipedia.org/