Article from the 21st September 2022 edition of the Heidelberg/Nigel Herald written by Eugene Viljoen.
On September 16, Tony Burisch of the Heidelberg Heritage Association awarded the latest Blue Plaque for Heritage to the Lilienfield Residence. The plaque is no 59 in the blue plaques for heritage in Heidelberg. The Lilienfeld residence is located at 65 Pretorius Street. 

Originally the house was built for Mr J Reichenberg in 1899. Reichenberg has a store in Ueckerman street, Heidelberg. Reichenberg started his general dealership 1892 by selling and trading wool, mielies, farm produce, dairy products and furniture. Just to name a few.

The property was sold to George and Hilda Lilienfeld in 1917. George Lilienfeld was family of the Lilienfelds that bought the Star of South Africa Diamond 1869. They also owned a large department store in Johannesburg and Pretoria. George worked in his father- in-law’s shop on the corner of Jacobs and market Street (now Voortrekker Street), which he inherited. 

George Lilienfeld was born February 6, 1883 and died on August 28, 1977. His wife was Hilda Augustine Schultz. Hilda was born on February 6, 1888. She died on June 5. 1975. The Lilienfelds got married on February 6, 1909 and had two children  - Erica Hilda Lilienfeld and Harold George Lilienfeld.

The Star of South Africa Diamond is a 83.5-carat rough diamond, that was purchased by Lilienfeld for £11,200 in 1868. Subsequently after Lilienfeld forwarded the diamond to their office in England; it was purchased by Louis Hond, a diamond cutter, who fashioned it into an oval three-sided pear shaped diamond. The diamond eventually became the property of the Earl of Dudley, who purchased it from the Queen's jewellers, Messrs.

Hunt & Roskell for £25,000, and presented it to his wife the Countess of Dudley. The diamond thus became known as the Dudley Diamond, after its new owner.
Dr Coenie and Adele Momberg purchased the property in 1984. He initially had his part-time practise at the house from 1992 – 2002. Momberg died on October 30, 2011 from Melanoma cancer. Momberg was previously Superintendent of the AG Visser Hospital and Chairman of the Heidelberg Historical Association.

(See Blue Plaque No. 23 to see Grandpa Schultz House)
Note by Tony: Interesting, a previous resident of this house, before the Momberg’s, was the well known Afrikaans author Paul C Venter. Information given by Adele Momberg.

​Source: Heidelberg Heritage Association - Article Post (Click to visit website)