The name Nathalia is a feminine given name of Russian origin, derived from the Latin name Natalia. It is believed to have its roots in the Latin word "natalis," which means "relating to birth" or "birthday." The name likely originated in the early Christian era, when Latin was widely used in the Roman Empire.

Nathalia is a variant spelling of the more common name Natalia, which has been used throughout history in various cultures and regions. The earliest recorded use of the name Natalia dates back to the 4th century AD, when it was mentioned in the writings of St. Jerome, a Christian scholar and theologian.

In the Eastern Orthodox tradition, Natalia is associated with the Christian martyr St. Natalia, who lived in the 4th century AD. According to legend, she was a wealthy woman from Constantinople who converted to Christianity and was eventually martyred for her faith during the reign of the Roman Emperor Aurelian.

One of the earliest notable individuals named Nathalia was Nathalia Kniagininskaya, a Russian noblewoman and lady-in-waiting to Empress Catherine II in the 18th century. Another historical figure with this name was Nathalia Sergeyevna Goncharova (1881-1962), a Russian artist and painter who was a prominent member of the avant-garde movement in the early 20th century.

In the literary world, Nathalia is the name of a character in the novel "The Brothers Karamazov" by Fyodor Dostoevsky, published in 1880. This character is portrayed as a young woman who becomes the object of desire for one of the main characters, Alyosha Karamazov.

Other notable individuals with the name Nathalia include Nathalia Crane (1913-1998), an American actress and model known for her roles in Hollywood films in the 1930s and 1940s, and Nathalia Gilbo (1900-1982), a Russian-American ballet dancer and instructor who taught at the School of American Ballet in New York City.

Overall, the name Nathalia has a rich history spanning various cultures and time periods, with its roots firmly grounded in the Christian tradition and the Latin language. While it may have evolved slightly in spelling over time, the name has maintained its essence and continues to be used around the world.