Columbia subject headings:
Charitable uses, trusts, and foundations (Canon law)
Gregory IX, Pope, approximately 1170-1241.
Inheritance and succession (Canon law)
Harvard subject headings:
Catholic Church. Decretales Gregrorii IX. Liber 3, titulus 26, 10-11.
Charitable uses, trusts and foundations (Canon law)--Early works to 1800.
Charitable uses, trusts, and foundations (Canon law)
Gregory IX, Pope, approximately 1170-1241.
Inheritance and succession (Canon law)--Early works to 1800.
Inheritance and succession law (Canon law)
Princeton subject headings: