Edward de Vere, 17th Earl of Oxford (1550–1604) was a courtier who wrote a number of love poems. Several of his poems appeared in print in a number of anthologies and miscellanies (according to Wikipedia), e.g. in The Paradise of Dainty Devises (1576), The Phoenix Nest (1593), England's Helicon (1600) and The Teares of Fancie (1593).
What I haven't been able to find, however, is when his (surviving) poems were first published together in single volume, possibly with just his poems. I assume this would have been after his death, but I would like to know whether this was before or after that infamous conspiracy theory reared its head in the 1920s.