Treat a surname as a single surname if it begins with one of the following articles, prepositions, or a combination of the two, with or without a space or hyphen:

A

Dello

Gli

Lhi

Una

A’

Degli

Ha

Li

Une

Af

Della

Hai

Lis

Uno

Ag

Den

He

Lo

Uns

Ai

Der

Heis

Los

Us

Ak

Des

Hen

Lou

Van

Al

Det

Het

Lu

Van de

Am

Di

Hi

Mia

Van den

An

Dia

Hin

Na

Van der

Ap

Die

Hinar

Ni

Ver

Ar

Do

Hinir

Nje

Vom

As

Dos

Hinn

Ny

Von

Au

Du

Hn

O

Von der

Aus

E

Hoi

O’ or’O

Von zu

Aux

Een

I

Oi

Y

Az

Ene

Ll

OS

Ye

D

Ei

Im

Si

Yn

D’

Ein

Isa

‘T

Yr

Da

Eine

Ka

Ta

Z

Dal

Eit

Ke

Te

Zu

Dalla

El

L

Ten

Zum

Das

Els

L’

Ter

Zur

De

En

La

To

 

De la

Et

Las

Um

 

Dei

Ett

Le

Uma

 

Del

Gl

Les

Un

 

Arabic surnames may begin with the following articles: al, el, ad, ag, ak, an., ar, as, and az. The article may or may not be capitalized. If the article is not capitalized and the article is not followed by more than one word, treat the Arabic surname as a single surname.

If the article is capitalized or if the article is followed by more than one word, treat the Arabic surname as a single surname.

If the article is capitalized or if the article is followed by more than one word, treat the Arabic surname as a multiple surname.

See also:

Appendix E. Content Designation