P.R. Laws tit. 31, § 2411
The widowed spouse shall be entitled to a quota, in usufruct, equal to the one which corresponds ad legitim [sic] to each one of his/her children or descendants not favored in the bequest.
If only one legitimate child or descendant shall survive, the widower or widow shall have the usufruct of that third which is authorized by law to be applied to advantages or extra portions, the former preserving the naked ownership until, on the death of the surviving spouse, the full title is merged in him.
If the spouses are separated by a suit for divorce, the result of the suit shall be awaited.
The provisions of this section and of the subsequent §§ 2412—2416 of this title, shall apply in like manner to the intestate as well as the testate succession.
History —Civil Code, 1930, § 761; Dec. 8, 1990, No. 25, § 1.