In this task, you are given two sentences in the English language (Sentence 1 and Sentence 2). Your task is to identify the connecting word between the two sentences.

Sentence 1:He paid 50,000 ducats for the palazzo to the Loredan family , who were having financial difficulties at the time . Sentence 2:However , he sold it only two years later to Duke Guglielmo Gonzaga of Mantua .
however