Sentence:  ... thereupon the queen's majesty, trusting that the king of Spain was of the same mind, she did send a solemn <WSD>ambassade</WSD> of her privy-counsellors, whereof one was an ancient earl of the realm, the other also an ancient baron of the same, and others of the council of her state ...Webster 1913 
Meaning of the word marked with <WSD> tags:  An embassy.