public void print() {
		System.out.println("ID: " + id);
		System.out.println("Name: " + name);
		System.out.println("Gender " + gender);
		System.out.println("Birthdate " + birthday + " " + birthyear);
		System.out.println("Deathdate: " + deathday + " " + deathyear);
		if (mother != null) {
			System.out.println("Mother: " + mother.getName());
		}
		if (farther != null) {
			System.out.println("Father: " + farther.getName());
		}
		if (children != null) {
			for (int i = 0; i < children.size(); i++) {
				System.out.println("Child: " + children.get(i).getName());
			}
		}
		if (spouse != null) {
			System.out.println("Spouse: " + spouse.getName());
		}
		System.out.println();
	}