those are all titled nobles - those with the five pointed crown are untitled so the family is of noble stock but the individual member is of a noble family but without a title so he is 'just' Herr J.A. von Whatever. Noble titles are usually associated with landed property and he who holds the title to the land also holds the noble title, his relatives who do not hold the title to the land do therefore not hold a noble title but are still members of a noble family and are therefore nobles. Is that clear?
those are all titled nobles - those with the five pointed crown are untitled so the family is of noble stock but the individual member is of a noble family but without a title so he is 'just' Herr J.A. von Whatever. Noble titles are usually associated with landed property and he who holds the title to the land also holds the noble title, his relatives who do not hold the title to the land do therefore not hold a noble title but are still members of a noble family and are therefore nobles. Is that clear?