The 19th century saw the flowering of Malayalam poetry, in the courts of Swati Thirunal. The period also produced the grammar works of 'Kerala Panini' A. R. Raja Raja Varma. His popular poem, Malayala Vilasam, marks the beginning of the modern era of Malayalam poetry, according to scholars. But the Golden Age undoubtedly, revolves around the famous trinity of Kumaran Asan, Ulloor S. Parameshwar Iyer and Vallathol Narayana Menon. Several other poets followed - Nalappat Narayana Menon and Balamani Amma, to name a few.