Kurš apprecējās ar Henrijs IV Lankasters?

Henrijs IV Lankasters, Plantagenets (Henry IV of Lancaster, of Bolingbroke, iespējams dzimis 1366. gada 3. aprīlī, miris 1413. gada 20. martā), dēvēts par Henriju Bolingbroku (pēc pils nosaukuma, kurā dzimis) bija pirmais Anglijas karalis (1399-1413) no Lankasteru dinastijas. Henrijs IV bija arī pirmais Anglijas karalis, kuram vienīgā dzimtā valoda bija angļu.

Joan of Navarre, also known as Joanna (c. 1368 – 10 June 1437) was Duchess of Brittany by marriage to Duke John IV and later Queen of England as the wife of King Henry IV. Joan was a daughter of Charles II of Navarre and Joan of France. She served as regent of Brittany from 1399 until 1403 during the minority of her eldest son, Duke John V. She also served as regent of England during the absence of her stepson King Henry V in 1415. Four years later Henry V imprisoned her and confiscated her money and land. Joan was released in 1422, shortly before Henry's death.