In the Middle Ages this name was common in England due to the popularity of medieval tales about the Trojan War. It subsequently became rare, but was revived in the 20th century.
This is the usual form of the name Elizabeth in Spain and Portugal, though elsewhere it is considered a parallel name, such as in France where it is used alongside Élisabeth. The name was borne by two Spanish ruling queens, including Isabel of Castile, who sponsored the explorations of Christopher Columbus.
In the United States this form was much less common than Isabel until the early 1990s, when it began rapidly rising in popularity. It reached a peak in 2009 and 2010, when it was the most popular name for girls in America, an astounding rise over only 20 years.
A famous bearer is the Italian actress Isabella Rossellini (1952-).
Olivia has been used in the English-speaking world since the 18th century, though it did not become overly popular until the last half of the 20th century. Its rise in popularity in the 1970s may have been inspired by a character on the television series The Waltons (1972-1982) [2] or the singer Olivia Newton-John (1948-2022). In 1989 it was borne by a young character on The Cosby Show, which likely accelerated its growth. It reached the top rank in England and Wales by 2008 and in the United States by 2019.
A famous bearer was the British-American actress Olivia de Havilland (1916-2020).