Final answer:
The Second War of L'Manburg is from the fictional Dream SMP universe, and the references provided do not cover this topic. An answer based on the lore from the Dream SMP is required to accurately determine who was on Manberg's side in that narrative.
Step-by-step explanation:
The question at hand refers to a fictional event within the storyline of the Dream SMP, a server in the game that is used for role-playing and storytelling involving content creators. The Second War of L'Manburg is an event from this narrative. However, it appears there is a mix-up or misunderstanding, as the provided reference materials relate to historical events and not to the fictional Dream SMP universe. Thus, to answer the question regarding who was on Manberg's side at the start of the Second War of L'Manburg, we would need to rely on the lore established within the Dream SMP narrative, which is not covered by the provided information.