Masjid al-Hisn was built by a caliph who ruled between what years ?
Masjid al-Hisn Masjid al-Hisn (Arabic: مسجد الحصن‎ ‎ , "The Fortress Mosque") was built between 717 and 720 CE by the Umayyad caliph Umar II, as part of his conversion of Mopsuestia (in present-day southeastern Turkey) into a military base to shield Antioch from a potential Greek attack.
Hasan ibn Ajlan Badr al-Dīn Abū al-Ma‘ālī Ḥasan ibn ‘Ajlān ibn Rumaythah ibn Abī Numayy al-Ḥasanī (Arabic: بدر الدين حسن بن عجلان بن رميثة بن أبي نمي الحسني‎ ‎ ) was Emir of Mecca from 1396 to 1426 with interruptions, and the first Vice Sultan in the Hejaz from 1408 to 1416.