Final answer:
The statement is true. William of Orange was in line for the throne of England despite being married to James II's daughter, Mary.
Step-by-step explanation:
In the context of the given information, the statement is true. William of Orange, who was married to James II's daughter, Mary, was indeed in line for the throne of England. This was due to William's own political ambitions as well as the political instability in England at the time.