also no connection between Diego and Richard - two different names.
Meaning & History
Possibly a shortened form of SANTIAGO. In medieval records Diego was Latinized as Didacus, and it has been suggested that it in fact derives from Greek διδαχη (didache) "teaching". Saint Didacus (or Diego) was a 15th-century Franciscan brother based in Alcalá, Spain. Another famous bearer of this name was Mexican muralist Diego Rivera (1886-1957).
OTHER LANGUAGES: Dídac (Catalan), Didacus (Medieval Spanish)
USAGE: English, French, German, Czech, Dutch, Ancient Germanic
PRONOUNCED: RICH-ərd (English), ree-SHAHR (French), RIKH-ahrt (German) [key]
Meaning & History
Means "brave power", derived from the Germanic elements ric "power, rule" and hard "brave, hardy". The Normans introduced this name to Britain, and it has been very common there since that time. It was borne by three kings of England including Richard I the Lionheart, leader of the Third Crusade in the 12th century. Famous bearers include two German opera composers, Richard Wagner (1813-1883) and Richard Strauss (1864-1949), as well as British explorer Sir Richard Burton (1821-1890) and American musician Little Richard (1920-).
VARIANT: Ricohard (Ancient Germanic)
DIMINUTIVES: Dick, Rich, Richie, Rick, Rickey, Rickie, Ricky, Ricki, Ritchie (English)
FEMININE FORMS: Richelle, Richardine, Rikki (English), Ricarda (German)
OTHER LANGUAGES: Ricard (Catalan), Rikard (Danish), Rikhard, Riku (Finnish), Richárd, Rikárd (Hungarian), Risteárd (Irish), Riccardo (Italian), Rihards (Latvian), Dicun, Hudde (Medieval English), Rikard (Norwegian), Ryszard (Polish), Ricardo (Portuguese), Rihard (Slovene), Ricardo, Rico (Spanish), Rikard (Swedish), Rhisiart (Welsh)