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Male Laszlo IV Koenig von Ungarn Click to view Laszlo IV Koenig von Ungarn in the family tree

Laszlo IV Koenig was born in 1262 in Of, Buda, Pest, HUNGARY.1   Laszlo IV Koenig's father was Istvan V  Koenig von Ungarn and his mother was Erzsebet Princess von Kumans.  His paternal grandparents were Bela IV Koenig von Ungarn and Marie Lascaris Prinzessin von Constantinople; his maternal grandfather was Kuthen Khan von Kumans (Cumamia). He had three brothers and five sisters, named Andras Prince, Salamon Prince, Kalman Princevon, Katalin Princess, Maria Princess, Anna Prinzessin, Erzsebet Prinzessin and Miss Princess.  He was the fifth oldest of the nine children.  He died at the age of 28 on July 10th, 1290.1 

Family Details of Laszlo IV Koenig's family with Isabella Princess von Neapels & Sicily

1 World Family Tree Vol. 11, Ed. 1 @ Tree #3804

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