Conversation so far:
Who ruled constantinople for 50 years during the early 1200s
Constantinople was the seat of the Latin Empire for fifty years.
Who were notable members of the Latin Empire?
Notable members of the Latin Empire Include: Baldwin I, Henry, Peter, and Yolanda.
Who was the first ruler of the Latin Empire?
The first ruler of the Latin Empire was Baldwin I.

Question: Who was the last ruler?
Self-contained rewrite: Who was the last ruler of the Latin Empire?