My language would force me to tell you whether or not this was an uncle on my mother's side or my father's side, whether this was an uncle by marriage or by birth, and if this man was my father's brother, whether he was older than or younger than my father.
Mi idioma me obligaría a decirles si se trata de un tío por parte de madre o de padre, si se trata de un tío por matrimonio o por nacimiento y, si fuera el hermano de mi padre, si es mayor o menor que mi padre.