Final answer:
Frau Elena's great-uncle is described in the text as having an austere reserve and a pallid haughtiness. His demeanor is described as austere and romantic.
Step-by-step explanation:
In the text, Frau Elena's great-uncle is described as having a austere reserve and a pallid haughtiness. He has an unconscious air of intensity and pallid how shall I call it?. His demeanor is described as eaustere and romantic.