More completely, "laid him on the green" was misheard as "Lady Mondegreen." As described in the article I linked to in my previous post:
Regards,
-- Al
In November, 1954, Sylvia Wright, an American writer, published a piece in Harper's where she admitted to a gross childhood mishearing. When she was young, her mother would read to her from the “Reliques of Ancient English Poetry,” a 1765 book of popular poems and ballads. Her favorite verse began with the lines, “Ye Highlands and ye Lowlands / Oh, where hae ye been? / They hae slain the Earl Amurray, / And Lady Mondegreen.” Except they hadn’t. They left the poor Earl and “laid him on the green.” He was, alas, all by himself.
Regards,
-- Al