Ralph Freidin, Dr. Miriam Freidin and Elizabeth Freidin sold a one-bedroom, one-bath condo at 262 6 Ave. in Park Slope to Diana Bramham for $412,000 on Oct. 15.

Unit #2E is one of the 43 units in the four-story condo development, built in 1921.

Dr. Ralph Freidin is an internist at Mount Auburn Healthcare at Lexington in Massachusetts.

He completed his residency at Boston City Hospital and Beth Israel Hospital in Massachusetts, and at Barnes Hospital in Missouri.

Dr. Miriam Freidin is an adult and child psychiatrist.

She previously was a supervisor and child psychiatry residents' teacher at Turfs New England Medical Center in Massachusetts for nearly three decades.

According to BlockShopper.com, there have been 123 condo sales in Park Slope during the past 12 months, with a median sales price of $585,000.