I...I found The Netherlands [Holland's] description in APH!
(As said by Santa Finland)
Holland is a tall, muscular guy who's in super good shape!
After all, he beat up Spain, who was in control of him during Spain's golden age.
And he likes young women (too young?) and also thinks some shady drugs are okay, so he's kind of a punk in that way.
He fought over the title of "The Tulip Country" with Turkey (Turkey has been cultivating them since the era of the Ottoman Empire, so he said his history was longer), but Holland is more famous by far so he wins I suppose.