Personal names are not universally written with the first letter in upper and the other letters in lower case. Prepositions in names may begin with lower case letters, upper case letters may appear within personal names. Unusual casing is sometimes adopted in names to give them a level of uniqueness. In some cultures surnames are often written in all upper case, also as a means of distinguishing them from other name elements.
Kees van den Broek
Henry de la FONTAINE
LEE Kuan Yew
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