As a result, Ferdinand became successor to Alfonso's kingdoms of León and Galicia, bringing about a permanent union into what would come to be called the Crown of Castile, wherein the kingdoms continued as administrative entities under the unified rule of a single monarch.
Ferdinand became successor to Alfonso's kingdoms of León and Galicia. This was as a result. The kingdoms continued as administrative entities under the unified rule of a single monarch. Ferdinand was bringing about a permanent union into what would come to be called the Crown of Castile. This was as a result. The kingdoms continued as administrative entities under the unified rule of a single monarch.