Isabella of Viola (1836-1929) was the first Queen and fifth monarch of Viola, ruling from 1877-1929. She was born to King Giovanni II and Queen Margherita of Viola. She married Prince Max of Brunant in 1857 and they had eleven children:
1. Prince Maximilian Alexander (1856-1860)
2. Charles III (1858-1939)
3. Princess Giovanna (1860-1917)
4. Princess Philippa (1862-1923)
5. Princess Isabella (1864-1957)
6. Princess Carolina (1865-1910)
7. Princess Amalia (1867-1871)
8. Princess Louisa (1869-1913)
9. Princess Olivia (1869-1944)
10. Princess Martha (1872-1975)
11. Prince Vittorio (1874-1933)
Upon her death she was succeded by her son Charles III.