lastChild

The designator lastChild refers to the last immediate child of the current note. For example:

             I. A note

                        Ia. Another Note

                        Ib. Yet Another Note

             II. Some Note

                        IIc. Subsidiary stuff

             III. Different stuff

             IV. More Stuff

The lastChild of I. is Ib. The lastChild of II. is IIc. III. has no lastChild.

The logical opposite of lastChild - i.e. the first child - is child [sic].

---