Zealous, Yes that is perfectly possible. The Venice analogue is a former Imperium city in the Rose Marches and who's to say Othello did not have a son or other relatives? Most Shakespeare plays don't have any set chronology so really all of them could fit in this world. The tragedy of Romeo and Juliet was an actual event for example and Lord Fortinbras holds the former lands of House Hamlet for the Empire among other things. You can play four characters at the same time so you could base another character off of that story as well. 

As for the Alkebulan, as a whole the continent is an analogue to the real-world Africa. The Arabian Sultanate holds large portions of it, but faces rebellion from the local Hebrews and from Kemet where the Ancient Egyptian gods still hold sway. The Alkebulan is one of the last places where you can find the great lizards AKA Dinosaurs. The Sultanate's territories are also being attacked by the Empire who hold portions of the Northwest under Imperial control. And you could create a minor noble house to start with and again they must have some kind of story connection or origin. 

Barioth, The roleplay will feature events occurring throughout Europa. Characters can visit Albion, Francia, Germania, the Frozen Sea, the Winterlands, the Riverlands, the Marches, the Draconian Islands, and many more places. The Imperial City of Dracolisk is where much of the intrigue occurs of course. Even foreign locations like the Rus, the Imperium, Oz, Wonderland, the Neverland Frontier, Liliputia, the Sky-Front, and the Alkebulan colonies can be visited if events draw your characters there.