The father of Frederekick von muesel Kowalski de roll the 2nd and grandfather of Frederekick von muesel Kowalski de roll the 3rd, Frederekick von muesel Kowalski de roll the 1st spends his time doing accounting work for the Explorers' Guild as part of the family business. Despite having a quick wit and sharp eyes in his youth, age has start to catch up with Frederekick von muesel Kowalski de roll the 1st, allowing even Sukemoru Uzuto to get one over on him, albeit accidentally. Even so, Frederekick von muesel Kowalski de roll the 1st plans to work until he dies.