http://rollo.com/geneaolgy.htm (solo con Explorer, repetir el typo)
http://www.patpnyc.com/hrolf-de.htm (solo Explorer)
http://www.mids.org/sinclair/ph/(Hrólf) Duchy of Normandy, by King Charles "the Simple" of France, by a Treaty signed at Castle St. Clair-sur-Epte in 911 AD and from which place the Sinclairs (St. Clairs) take their name.
Child 1: Normandy, William I LONGSWORD of, Duke of Normany 2nd
Child 2: Robert of Corbeil, Count of Corbeil
Child 3: Crespina
Child 4: Gerletta
Child 5: Kathlin
Child 6: Adele of Normandy, b. ABT 917
Some say that Rollo was the same as Ganger-Hrolf, or Rollo the Ganger, who was called that because he was so gangly, to be specific, his legs were so long that when he rode a horse it looked like he was walking; Ganger means Walker. However, according to Peter Kurrild-Klitgaard, Ph.D., the early sources all distinguish the two men.