I want to know the answer to the following question:
When did Demetrius seize the Macedonian throne?
All the background I'm provided with is that "After Cassander's death in 298 BCE, however, Demetrius, who still maintained a sizable loyal army and fleet, invaded Macedon, seized the Macedonian throne (294) and conquered Thessaly and most of central Greece (293-291).". Is that enough to answer the question?
Answer: yes