Below you can find the Her son willem-alexander was the first male heir in the netherlands' house of orange since 1890 Jeopardy Words Answer. The answer to Her son willem-alexander was the first male heir in the netherlands' house of orange since 1890 has 7 letters. This clue belongs to the European history category and is part of Jeopardy Word Level 368. If you scroll near the bottom you will find other clues and answers part of level 368