Generally bynames consist of nouns, prefixes, weak adjectives, or strong adjectives.
vAn adjective
in a byname must agree in gender with the gender of the person being named. (Nouns usually agree as to
gender, but not
always.)
vAfter the definite
article (inn or in) weak adjectives are used, although they can also appear without the article.
vStrong adjectives do not
appear with the definite article.
vIf a noun is used as a
prepended byname, it is most frequently in the genitive plural.