The situation of people who were half or quarter Jews, and of Jews who were married to non-Jews, was more complex. Under the Nuremberg Laws of 1935, their status had been left deliberately ambiguous. Heydrich announced that "Mischlinge" (mixed-race persons) of the first degree (persons with two Jewish grandparents) would be treated as Jews. This would not apply if they were married to a non-Jew and had children by that marriage. It would also not apply if they had been granted written exemption by "the highest offices of the Party and State". Such persons would be sterilised or deported if they refused sterilisation. A ""Mischling" of the second degree" (a person with one Jewish grandparent) would be treated as German, unless he or she was married to a Jew or a "Mischling" of the first degree, had a "racially especially undesirable appearance that marks him outwardly as a Jew", or had a "political record that shows that he feels and behaves like a Jew". Persons in these latter categories would be killed even if married to non-Jews. In the case of mixed marriages, Heydrich recommended that each case should be evaluated individually, and the impact on any German relatives assessed. If such a marriage had produced children who were being raised as Germans, the Jewish partner would not be killed. If they were being raised as Jews, they might be killed or sent to an old-age ghetto. These exemptions applied only to German and Austrian Jews, and were not always observed even for them. In most of the occupied countries, Jews were rounded up and killed "en masse", and anyone who lived in or identified with the Jewish community in any given place was regarded as a Jew.