See this from LLPSI Cap XLIV
Anci liberi iam tum, comprehensis sceleris ministris, ut vivere regem et tantas esse opes Servii nuntiatum est, Suesssam Pometiam exsulatum ierant.
Does the participle here nuntiatum belong to opes - and if it does then why isn’t it nuntiatae sunt?
Is nuntiatum just an idiomatic way of saying it had happened…?