Jericho is the name of an old city in Palestine.
Jericho is also the name of some places in the United States of America, presumably named for the place in the Middle East:
... as
to a mother. She should be invoked. He also
gives prayers to Mary (cf. the De tabernaculis, and
Hortus rosarum, Pohl's ed., ut inf., i. also iii. 357,
vi. 219, 235 ...