Floris I was count of Holland, then called Frisia west of the Vlie, from 1049 to 1061.
Floris was born in Vlaardingen. He was a son of Dirk III and Othelindis of Nordmark. Floris succeeded his brother Dirk IV, who was murdered in 1049. Wikipedia
Born: Vlaardingen, Netherlands
Died: June 28, 1061, Nederhemert, Netherlands
Great grandchildren: Dirk VI, Count of Holland, Floris the Black, Louis VII of France, and more
Parents: Dirk III, Count of Holland and Othelindis
Grandchildren: Floris II, Count of Holland, Louis VI of France, and Constance of France, Princess of Antioch
Children: Dirk V, Count of Holland, Bertha of Holland, and Floris van Hollant
Spouse: Gertrude of Saxony (m. 1050)