Cleopatra by Diane Stanely and Peter Vennema*

Through a narrative structure, the authors share the life of Cleopatra VII from the time she was eighteen and until her death at age thirty-nine.  During her lifetime she helped rebuild Egypt into a powerful country and was able to attract two Roman rulers.
A lot of information about Rome, Egypt, the intrigue, and rulers at the time are provided in this picture book.  The preface, note on ancient sources, the map and epilogue offer additional facts.
The illustrations are rich and beautiful. 
*Highly recommend for older elementary and junior high (see warnings).
Points to discuss/warning: multi-wives, "lived as man wife"-not really married; murder; attempted suicide/suicide