Although there appears to be many variants to the spelling of his name, Delalande seems to be the way the family wrote it, but a recent scholarly work has it as De Lalande.
NINETEENTH CENTURY GREEK TENORS GIOVANNI APOSTOLU GIOVANNI COCKINIS CDR
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*GIOVANNI APOSTOLU (IOANNIS APOSTOLOU) (MENIDIS, ATHENS 1860 – NAPLES,
ITALY, 28 AUGUST, 1905)*
He studied singing at the Conservatory in...