Monarchy.cs

 class Monarchy
    {
        public enum Title
        {
            Emperor,
            King,
            Regent,
            Imperial_Prince,
            Real_Prince,
            Grand_Prince,
            Prince,
            Infant,
            Archduke,
            Grand_Duke,
            Duke,
            Count_Duke,
            Marquis,
            Count,
            Count_Baron,
            Viscount,
            Baron,
            Baronet,
            Knight,
            Squire
        }

        public enum Belief
        {

        }
        public static List<Empire> Empires = new List<Empire>();

        public class Person
        {
            public string Name { get; set; }
            public int Age { get; set; }
            public Title Title { get; set; }
            public string Empire { get; set; }
        }
        public class Empire
        {
            public string Name { get; set; }
            public double Wealth { get; set; }
            public Belief Belief { get; set; }
            public bool isThereAnEmperor { get; set; }
            public Person whoisKing { get; set; }
            public Person whoisEmperor { get; set; }
                
            public void SaveEmpire()
            { Empires.Add(this); }
            public bool hasSaved()
            {
                if (Empires.Contains(this))
                    return true;
                else
                    return false;
            }
            public void DeleteEmpire()
            {
                if (hasSaved())
                    Empires.Remove(this);
                else
                    throw new Exception("You don't have saved for delete this.");              
            }
        }
    }