Tughril
Tughril Beg (Tuğrul Beg) was the Seljuk leader (died 1063) who co-founded the Seljuk state; he is recorded in Persian and Arabic medieval chronicles.
No. Tughril is a Turkic historical name recorded in medieval Islamic historiography, not in the Quran or Hadith.
Bird-of-prey imagery in Turkic names symbolizes strength, leadership, martial prowess and nobility; Tughril specifically evokes a powerful raptor.
Yes. Tughril is attested in Persian chronicles and literature describing Seljuk history and appears in epigraphic and numismatic records from the Seljuk period.
Modern Turkish retains Tuğrul (Tugrul/Tughril) as a given name; other transliterations (Toghrul, Tughril) appear in English-language histories.