Task: Question Generation
Input (English): Context : Engelbert I of Nassau (c. 1370, in Dillenburg -- 3 May 1442, in Breda) was a son of Count Johan I of Nassau and Countess Margaretha of the Marck, daughter of Count Adolph II of the Marck. 
Answer : 3 May 1442
Output (English): When did the life of Engelbert I of Nassau end?