Palm branch or lily
If the saint is holding a palm branch, she's a martyr. The palm was, for the Romans, a symbol of victory. This meaning was carried into Christian symbolism, to suggest the martyr’s triumph over death. If the saint is carrying a lily instead or as well, shes a virgin. This saint, Lucy, holds the palm of martyrdom and her eyes -- removed as part of her martyrdom -- in the other hand.
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