Short answers, pulled from the story.
Xavier Lebret d'Imbert commanded these Royalist forces and requested help from the First Coalition. He delivered the port of Toulon to the Allied powers after local Federalists evicted the Jacobin chapter.
On the 19th of October he was promoted to Chief of Battalion while organizing a grand battery called the Convention on the hill of Arènes facing the enemy fortifications. This occurred after he had acquired 100 guns for the Republican force through requisitioning equipment from surrounding areas.
Convention troops entered the city on the 19th of December after the evacuation was complete. Paul Barras and Stanislas Fréron directed the subsequent suppression of Royalists with extreme bloodiness between that date and the following days.
The British fleet rescued 14,877 Toulonnais from the city during the evacuation. Robust carried more than 3,000 civilians from the harbour while Princess Royal held another 4,000 as witnesses reported scenes of panic where stampeding civilians were crushed or drowned.
Fort Mulgrave stood on the summit of the hill of Cairo and was named after British commander Henry Phipps. It was supported by three smaller forts called Saint-Phillipe, Saint-Côme, and Saint-Charles which French troops nicknamed this impregnable assemblage Little Gibraltar.