Former Owner
- Robert Lehman1
- Robert Samuel Turner1
- Robert Treswell1
- Robert Walker1
- Robert de Mol1
- Roderick Terry1
- Royal Monastery of Saint Mary of Guadalupe1
- Rudolf Busch1
- Rudolf Hofmeister1
- Ruth E. Adomeit1
- Sabina Sopheija Behren1
- Sam Fogg Rare Books & Manuscripts1
- Samuel Allan1
- Samuel Putnam Avery1
- San Sebastiano, Verona1
- Sankt Maria Magdalena1
- Santander San Juan, Simon de, -17911
- Santi Michele Arcangelo e Nicola Vescovo church1
- Sarah Dauphinais1
- Schloss Nordkirchen1