Question: Who is Eric I, Duke Of Schleswig's paternal grandmother?
Sentence (from "Eric Longlegs, Lord of Langeland"): Erik Eriksøn, also known as Eric Longlegs,( 1272 – 1310), Lord of Langeland, was the second son of Eric I, Duke of Schleswig and younger brother of Valdemar IV, Duke of Schleswig.
Relevant evidence: No