House of Nassau
9 November 1455 (age 60), Breda (
Elisabeth of Hesse-Marburg
Johanna van Polanen, Engelbert I of Nassau, John I, Count of Loon-Heinsberg
30 July 1516 (aged 60) Dillenburg
Jan IV of Nassau, Maria of Loon Heinsberg, Engelbert II of Nassau
Johann V of Nassau-Vianden-Dietz (Breda, 9 November 1455 – Dillenburg, 30 July 1516) was count of Nassau (in Siegen, Dillenburg, Hadamar and Herborn), Vianden and Diez, and Lord of Breda. He was the paternal grandfather of William the Silent.
He was the son of Jan IV of Nassau and his wife Maria of Loon-Heinsberg.
Johann V married in 1482 to Elisabeth of Hesse-Marburg, a daughter of Henry III, Landgrave of Upper Hesse and his wife Anna of Katzenelnbogen. They had 6 children:
Count Johann V was buried at Siegen.
His Dutch possessions went to his eldest son Henry, his German possessions to his other son William.