Princes of Quadt de Wykradt-Isny Prinzen von Quadt zu Wykradt und Isny First holder Bertram, prince of Quadt zu Wykradt and Isny * 1849 Records #5 Holders Family filter On/Off 1 Bertram, prince of Quadt zu Wykradt and Isny * 1849 2 Alexander, prince of Quadt zu Wykradt and Isny * 1885 3 Alban, prince of Quadt zu Wykradt and Isny * 1921 4 Paul, prince of Quadt zu Wykradt and Isny * 1930 5 Alexander, count of Quadt zu Wykradt und Isny * 1958 Corrections and Updates To suggest a correction or an update. Click Here