About Us

Ralph Schwarz

Ralph Schwarz

Non-Executive Chairman

Ralph has a background in Geoscience and Compliance Assurance, having held posts in Asia, Europe, Africa, North America and Australia in the private and public sectors.


Ralph has been the director of a number of private companies, and has held a variety of board positions, most recently as Treasurer of the Commonwealth Safety Management Forum.


Ralph currently lives in Canberra, ACT, Australia and works as compliance specialist for a national utility.

Tatiana Iakovleva

Tatiana Iakovleva

Non-Executive Director

Tanya is our ambassador ‘on the ground’ in Eastern Europe (Poland, Russia, Ukraine & Latvia in particular) and her passion is travel. She regularly organises trips all over the world for friends, family and for herself of course.


Tanya collects fascinating stories and legends of cities and families and has recently undertaken an investigation about the Rosentreter family in Russia & Latvia where she has been instrumental in contacting and translating for our cousins there.


Tanya lives in Kovrov, Vladimir District, Russia and works as a Chief Accountant for a large bakery chain.

Roger Rosentreter

Roger Rosentreter

Managing Director & Company Secretary

Roger has been researching the family history for over 30 years and is the driving force behind the Foundation and the Family Tree.


Roger has a background in music and investment & accounting, including time with Perpetual Trustees in their Charitable Trusts Division, as Company Secretary for the Australian Institute of Professional Photography (AIPP) and as a director of a number of private companies.


Formerly a professional violinist in Sydney, and investment advisor, Rog now lives in the Hunter Valley, NSW, Australia and works as a wedding, commercial & portrait photographer.

Company Secretary

Office Address:
3/5 Chidgey St
Cessnock NSW 2325

Postal Address:
PO Box W93
Cessnock West NSW 2325

Mobile Phone: +61 427 415 294

Skype: rogerrosentreter

Email: info@rosentreterfoundation.org






Bank: Commonwealth Bank – Cessnock (NSW)
Account Name: Rosentreter Foundation Limited
Account BSB:
Account Number:


General Paypal Payments & Donations Email Account: info@rosentreterfoundation.org



Donate to the Scholarships & Bursaries Fund


Donate to the Family Tree Research Fund


Donate to the Memorabilia Fund