Jules Antoine Virgile Richeux was a French-born Professor of Languages who lived in London. He married Irish-born Julia Burns in 1857 and together had eleven children, the surviving of whom all went on to work in the cigar and tobacco industry. Perhaps they were struck by the similarity of their names, as they rather liked using similar names for their children.
1. Virgile Jules Horace Maximilien, was born in 1858 but died in 1859.
2. Virginia Julia Lucia Rosa Clementia, born in 1859, was given a feminine form of her brother's name. On the 1901 cenus she was called Rosa. She died at the age of 77, without issue.
3. Virgilius Julius Horace Maximillian Washington, was born in 1861. On the 1871 and 1881 census he is called Virgile. The name listed on his birth record appears as a Latinised form of his older brother's.
4. Julius Horatius Martialis Cornilianus Angelus was born in 1863. His name was recorded in this Latinised form in the Birth Index, but he appears on census records as Jules. Horatius is the Latinised form of Horace, a name he shares with his brother; Martialis is the Latin form of Martial, the famous Roman poet; and Petrus Cornilianus was the Latin form of Pierre de Corneillan, Grand Prior of Saint-Gilles. As Virgile's name was also sometimes Latinised, we can suspect that the name was intended as Jules Horace Martial Corneillan Angele.
5. Julia Ann Lucia Flora Angelina Virginia was born in 1864. On the 1871 and 1881 census pages she is Julia, though on the 1891 census she is Lucy J, and Julia Flora in 1901. She died at the age of 78, without issue.
6. Ida C L C L was born in 1866. Unfortunately, by this point, the records do not record more than two forenames. We can only speculate on Ida's other names but, given her parent's habit of repeated names, it is likely she shared names with her siblings. Lucia, Clementia and Carlotta were used by her sisters, which perhaps represent the C and L initials. Ida married George Henry Parish in 1894 and had children: Henry Horace, Arthur Ernest, George Thomas and Albert Bernard.
7. Adelina Rosa D I L was born in 1868. My guess would be that her two last names were Ida Lucia. She died aged 78, without issue.
8. Horace Emile M D P was born in 1870, but sadly died in the following year. Perhaps the "D" in Adelina's name was repeated in masculine form for her brother.
9. Horatius C M L M was born in 1872. He appears in census records as Horace. My guess would be that his name took the form of Horace Corneillan Martial Lucius Maximilien.
10. Emile Edouard S L A followed in 1873, but died within a few weeks.
11. Carlotta F L M C, the couple's last child, was born in 1875. She is listed on the 1881 census as Florence, and Florry on the 1891 census, so she seems to have gone by her second name. My guess is that her full name was Carlotta Florence Lucia M?. Clementia.
The younger Jules (b.1863) married Agnes May Paisey in 1892, and continued the pattern of multiple repeated names for his own children:
1. Blanche Winifred D A M (1895-895)
2. Winifred Blanche D A M (b.1896)
3. Mildred B V J I A F (b.1898) -- called Blanche. Her other initials exactly match the order of Jules' sisters. My guess is her full name was Mildred Blanche Virginia Julia Ida Adelina Florence. She married Music Hall star George Robey and later became Lady Robey.
4. Jules Horace V E (b.1901) -- Most likely: Jules Horace Virgile Emile. Known as Prince Littler. Made a CBE in 1857 for his notable work in theatre.
5. Emile Jules Virgile Horace (b.1903) -- He formally changed his name to Emile Horace Littler in 1920 and was knighted in 1974 for his notable work in theatre.
6. Joyce V R S V (b.1905) -- called Sylvia on 1911 census, and Sylvia J on marriage entry.
ETA: I have found a lovely site that tells the theatrical story of the children of Jules (Jnr), complete with photographs, and how they came to be Littlers.