- Initial R - mythological: Romulus and Remus (Daubmann)
- Initial R(Euerendus) - Romulus and Remus. In Mikołaj "the Red" Radziwiłł, Pietro Paolo Vergerio, Dvae Epistolae Altera Aloysii Lipomani..., Königsberg: Hans Daubmann (printer), 1556 (Vienna, ÖNB), fol. A4r ◼
- Initial R(Abi). In Jan Mączyński, Lexicon Latino Polonicvm, Ex Optimis Latinae Lingvae Scriptoribvs Concinnatvm ..., Königsberg: Hans Daubmann (printer), 1563 - 1564 (Cracow, MNK, BCzart), fol. 344r
- Initial R(Abi). In Jan Mączyński, Lexicon Latino Polonicvm, Ex Optimis Latinae Lingvae Scriptoribvs Concinnatvm ..., Königsberg: Hans Daubmann (printer), 1563 - 1564 (Kórnik, BK PAN), fol. 344r
- Initial R(Abi). In Jan Mączyński, Lexicon Latino Polonicvm, Ex Optimis Latinae Lingvae Scriptoribvs Concinnatvm ..., Königsberg: Hans Daubmann (printer), 1563 - 1564 (Warsaw, BN), fol. 344r