Here are some Minecraft server name ideas based on "empire SMP" and "throne SMP":

Empire SMP Variations:

• Empyrean Stronghold: Evokes a sense of grandeur and power.
• Imperial Bastion: Suggests a well-defended and imposing empire.
• Crimson Empire: Hints at a darker, more ruthless empire.
• Golden Empire: Implies wealth and prosperity.
• Eternal Empire: Suggests an enduring and powerful reign.
• Ironclad Empire: Conveys strength and resilience.
• The Obsidian Throne: Combines empire and throne themes.
• Empire of the Rising Sun: Adds a specific cultural element.
• Nova Imperium: Latin for "New Empire," adds sophistication.
• Regal Dominion: Focuses on the regal aspect of the empire.
• The Emerald Dynasty: Uses a different term for empire, adding variety.
• Aethelred's Reign: A more personalized empire name, using a fictional king's name.
• The Sunken Empire: Suggests a lost or forgotten empire, adding mystery.
• The Grand Imperium: Simple, yet powerful.
• Forged Empire: Suggests the empire was built through hard work and struggle.

Throne SMP Variations:

• Crystal Throne: Suggests a magical and powerful throne.
• Iron Throne: A classic, strong, and imposing throne.
• Jade Throne: A more luxurious and elegant throne.
• The Obsidian Throne: (as above)
• Throne of Power: Simple and direct.
• Realm of the Throne: Adds a sense of place and scale.
• Seven Kingdoms Throne: Suggests a larger, more complex world.
• The Crimson Throne: A darker, more sinister throne.
• The Golden Throne: Implies wealth and power.
• The Whispering Throne: Adds mystery and intrigue.
• Ascension Throne: Suggests a journey to power.
• King's Dominion: Focuses on the king's rule.
• Crown of Thorns SMP: A more evocative and symbolic name.
• The Throne of Ages: Suggests a long-lasting reign.
• Legacy of the Throne: Focuses on the history and impact of the throne.

Combined Empire & Throne SMP Variations:

• Empire's Throne: Simple and direct combination.
• Throne of the Empire: A more formal and regal combination.
• Imperial Throne Room: Specifies a location within the empire.
• The Throne's Dominion: Combines throne and empire themes.
• Reign of the Crimson Throne: Combines a color theme with both concepts.
• The Grand Imperial Throne: Combines grandeur with both concepts.
• Eternal Throne, Eternal Empire: Emphasizes longevity.

Remember to check if the name is already in use before settling on one. Consider adding a number or abbreviation to your chosen name if it's already taken. For example, "Crimson Empire I" or "CT SMP".