The Windermere island Wordsworth calls “Chapel-Holm” is more commonly known as Lady
Holme (i.e., “the island of Our Lady”) or St. Mary Holme, taking its name from the
chantry established there in medieval times. St. Herbert’s Island on Derwentwater
is named for the seventh-century anchorite who had his hermitage there. The island
became a place of pilgrimage by 1374, when the Bishop of Carlisle ordered the vicar
of Crosthwaite to celebrate mass there on the saint’s feast day and offered forty-day
indulgences to participants. See Wordsworth’s inscription poem “For the Spot Where
the Hermitage Stood on St. Herbert’s Island, Derwent-Water” (1800).