Not too low for a second son I think.Was looking into possible brides for otl Charles I here @Valena for if Henry Frederick survives, and would Charlotte la Tremoille be too low on the pecking order? If so might James or Henry look to a Danish proxy?
James maybe, I don't think Henry would be interested.
How about https://en.m.wikipedia.org/wiki/Marie_de_La_Tour_d'Auvergne