Other notable neighbours include Provence (light blue), Urbino (the blue one between Roma and Romanga) and Tuscany (darker blue to the north of Roma). France is busy in the Hundred Years War with England, which they'll win. Expansion that way is gonna be awfully tricky.
Sadly, everyone between us and Denmark is a member of the HRE. We're not a member of the HRE and we can't move our capital, so we can't become one. Austria's not really a neighbour, but they're going to be the major stumbling block in any given war we're waging on territory north of us, due to the fact that they are the current Holy Roman Emperor and get called into war by any member states of the HRE when a non-HRE nation declares war on us.
Major neighbours are Naples (in purple, currently a subject nation of Aragon), France (the big blue blob), Milan (purplish, in Northern Italy) and Austria (in white). We own Roma (of course), Romanga, and the little white dot over in France, Avignon.