We’re over 60. Do we need to invite all aunts and uncles of deceased parents even if we’re not close?

I am very close to my 90-year-old aunt, who was my late uncle's wife and want to invite her to our small wedding dinner/reception. I have three other aunts and one uncle, all in their 90s, who live over an hour away. Would it be rude not to invite them all, even if we’re not that close? If so, will I need to add a plus one (or two for spouses) since they don’t drive and would need a ride?