Adolf of Nassau-Siegen

Count Adolf I of Nassau-Siegen (1362 – 12 June 1420), , was since 1384 Count of Diez, through his first marriage. With his brothers, he succeeded his father in 1416 as Count of Nassau-Siegen (a part of the County of Nassau), and also inherited the County of Vianden in 1417. He descended from the Ottonian Line of the House of Nassau.

Biography Adolf was born in 1362 as the eldest son of Count John I of Nassau-Siegen and Countess .

Adolf came into possession of the County of Diez through his marriage to Jutta before 1384. Roman King Wenceslaus invested him with the county in 1384. in 1394. The castle primarily served to secure Nassau-Diez territory against the counts of Katzenelnbogen (in particular Burgschwalbach). on 21 December 1409. Whichever of the brothers would be native or closest to his lands on the father's death should take possession of them in all brothers' name until a division would have taken place. Whoever would take something for himself alone would be disinherited. All parental decrees favouring one brother over the other were declared null and void in advance. Adolf hereby tacitly renounced his right to the part of Nassau-Hadamar and the districts of Herborn, Haiger and Löhnberg, which he could have claimed in advance from the marriage contract with the heiress of the County of Diez. However, the intended division did not take place: Adolf had no male offspring, the elder John was not married, the younger of the same name was a clergyman; it was to be expected that a division would not last long.

When Elisabeth of Sponheim-Kreuznach, Countess of Vianden, died without issue in 1417, the four brothers, grandsons of Adelaide of Vianden, Elisabeth's great-aunt, inherited the County of Vianden with the lordships of St. Vith, Bütgenbach, Dasburg and Grimbergen.

Shortly before his death, in 1420, Adolf transferred , Wehrheim and Rosbach to Walter and Frank von Kronberg for 4300 guilders, or rather only renewed an older pledge. Adolf is mentioned as living for the last time in the settlement with the Electorate of Trier about the lordship of Limburg of 22 April 1420, but as deceased in the settlement of his brothers with Lord Godfrey VII of Eppstein-Münzenberg about the County of Diez of 2 July of the same year. According to the of Arnstein Abbey, 12 June is the date of his death. Adolf was succeeded as Count of Diez by his son-in-law Godfrey VII of Eppstein-Münzenberg in one half and by his brothers in the other half. His brothers also succeeded Adolf as Count of Nassau-Siegen and Count of Vianden.

Marriages and issue First marriage Adolf married (marriage contract 30 November 1376 ) to Countess Jutta of Diez (after 1367

From the marriage of Adolf and Jutta only one daughter was born: Jutta ( If Adolf were to die without leaving any sons, the succession to the entire County of Diez was assured to Jutta and her heirs. A daughter whom Adolf might produce in a second marriage, on the other hand, was to have a right of inheritance to Diez before Jutta.

Second marriage Adolf remarried in 1402 Great-great-grandparents

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