Former Owner
- Pietro Giuseppe Ignati Mattei Cattochii1
- Pietro Millini1
- Pîrîzâde, Sayyid ʻAbd Allāh, Shaykh al-Islām1
- Qusṭanṭīn ibn Lūdūlf1
- Rafael Gomes1
- Raphael Nathan Nata Rabinowitz1
- Richard James Horatio Gottheil1
- Richard McKeon1
- Robert Brodhead Honeyman1
- Robert Churchill1
- Robert Dallas1
- Robert Dechert1
- Robert Mignan1
- Robert Samuel Turner1
- Robert de Mol1
- Rudolphus Rasser Donatus1
- Saeed Nafisi1
- Samuel Allan1
- Samuel William Ogg, Major-General1
- Sankt Thekla church (Vienna)1