Walter Scott wrote an influential poem, The Lady of the Lake, in 1810, drawing on the romance of the legend, but with an entirely different story set around Loch Katrine in the Trossachs of Scotland.
Scott's material furnished subject matter for La donna del lago, an 1819 opera by Gioachino Rossini.
Franz Schubert set seven songs from Walter Scott's Lady of the Lake, including the three "Ellen songs" ("Ellens Gesang I", "Ellens Gesang II", and "Ellens Gesang III"), although Schubert's music to Ellen's third song has become far more famous in its later adaptation, known as "Ave Maria".

The full French name of the University of Notre Dame, founded in 1842, is Notre Dame du Lac.
This is translated as "Our Lady of the Lake", making reference to Mary, mother of Jesus as the Lady of the Lake, evidencing fusion between Arthurian legend and middle-Christian history.

Alfred, Lord Tennyson adapted several stories of the Lady of the Lake for his 1859–1885 poetic cycle Idylls of the King.
He too splits her into two characters; Viviane is a deceitful villain who ensnares Merlin, while the Lady of the Lake is a benevolent figure who raises Lancelot and gives Arthur his sword.
Some other authors choose to emphasize a single character.
Walter Scott wrote an influential poem, The Lady of the Lake, in 1810, drawing on the romance of the legend, but with an entirely different story set around Loch Katrine in the Trossachs of Scotland. Scott's material furnished subject matter for La donna del lago, an 1819 opera by Gioachino Rossini. Franz Schubert set seven songs from Walter Scott's Lady of the Lake, including the three "Ellen songs" ("Ellens Gesang I", "Ellens Gesang II", and "Ellens Gesang III"), although Schubert's music to Ellen's third song has become far more famous in its later adaptation, known as "Ave Maria". 
The full French name of the University of Notre Dame, founded in 1842, is Notre Dame du Lac. This is translated as "Our Lady of the Lake", making reference to Mary, mother of Jesus as the Lady of the Lake, evidencing fusion between Arthurian legend and middle-Christian history.
Alfred, Lord Tennyson adapted several stories of the Lady of the Lake for his 1859–1885 poetic cycle Idylls of the King. He too splits her into two characters; Viviane is a deceitful villain who ensnares Merlin, while the Lady of the Lake is a benevolent figure who raises Lancelot and gives Arthur his sword. Some other authors choose to emphasize a single character.
Lady of the Lake