Question: John III of Egmont, was first Count of Egmont, Lord of Baer, Lathum, Hoogwoude, Aarstwoude, Purmerend, Purmerland and Ilpendam, and Stadtholder of Holland, Zeeland and West-Friesland, in the Low Countries, stadtholder, is an office of steward, designated a medieval official, and then a what?
Sentence (from "John III of Egmont"): John III of Egmont (or Egmond) (Hattem, April 3, 1438 – Egmond, August 21, 1516) was first Count of Egmont, Lord of Baer, Lathum, Hoogwoude, Aarstwoude, Purmerend, Purmerland and Ilpendam, and Stadtholder of Holland, Zeeland and West-Friesland.
Relevant evidence: Yes