When a Lake of the Isles mansion in Minneapolis sold for a record-breaking $4.859 million this fall, the name of the buyer was not yet public.

On Monday, Hennepin County property tax records for the home's address were updated with the name of the buyer: Eric Siegert, senior managing director with investment banking firm Houlihan, Lokey, Howard & Zukin in Minneapolis. When the 15-room Spanish Mediterranean-style home sold in September, it was the most a house had ever sold for in Minneapolis.