Complex sentence: Ketill is a character in such works as "Laxdaela saga", "Eyrbyggja saga", and "Eirik the Red's Saga" and his genealogy is described in detail in the "Landnámabók".
Split into simpler sentences: Ketill is a character in such works as "Laxdaela saga", "Eyrbyggja saga", and "Eirik the Red's Saga". His genealogy is described in detail in the "Landnámabók".