reignAsGrandDukeOfTuscanyEnd

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: reignAsGrandDukeOfTuscanyEnd

Indicates the time or event at which an individual’s tenure as Grand Duke of Tuscany comes to an end.