Former Owner
- Robert de Mol1
- Roderick Terry1
- Rodrigo de Abejos1
- Roger North, 2nd Baron North1
- Royal Monastery of Saint Mary of Guadalupe1
- Rudolf Busch1
- Rudolf Hofmeister1
- Rui Garcia1
- Ruth E. Adomeit1
- Sabina Sopheija Behren1
- Sam Schaefler1
- Samuel Allan1
- Samuel Lee1
- Samuel Matzinger1
- Samuel Pepys1
- Samuel Putnam Avery1
- San Domenico1
- San Sebastiano, Verona1
- Sankt Maria Magdalena1
- Santi Michele Arcangelo e Nicola Vescovo church1