Rella is a rare and intriguing name of uncertain origin, possibly derived from Italian Isabella or German Irela. Its meaning varies depending on its derivation, ranging from "devoted to God" to "strong as an angel". Notably, Rella has been popularized in George R.R. Martin's "A Song of Ice and Fire" series, where it is the name of Queen Cersei Lannister. Despite its mysterious origins, Rella remains a unique choice for parents seeking distinctive names.