What does Wren mean?
A nature name taken directly from the English word for the small, energetic songbird, from Old English 'wrenna'. It also exists as an English surname. Its use as a first name is modern.
What does Marlowe mean?
An English habitational surname from Marlow in Buckinghamshire, from Old English 'mere' (lake, pool) + 'laf' (remnants, leavings), i.e. marshy ground left after a lake was drained. Often loosely glossed 'driftwood'. It also recalls the Elizabethan playwright Christopher Marlowe.