You misunderstood. Travel artists, famous writers, etc. They are all people who can learn poetry (playing this game requires more dialogue). Ask them the woman you want to marry. You can look at the personality characteristics of the woman you like. There are four kinds: romantic fantasy, noble morality, longing for money, riding and hunting (like boys). All kinds of how to pursue, online. But the commonly used methods are: high charm, reciting poems. Different poems have different effects on different women's goodwill.

If you have a relationship with a Lord above 10, you can see their daughter get married in their town or castle without having to hold a banquet. Those who have no land will marry their daughters to the town where they mainly rest.

In a formal way, getting married depends on your future father-in-law. It seems that your father-in-law has no land and can't provide you with a wedding venue (you can try this)