Dictionary of Medieval Names
from European Sources

Leonard m. Old High German lewo 'lion' + Old Saxon hard, Old High German hart 'strong, hard'.

The name of a 6th C saint, the patron of prisoners.

Lienhard is an Alemannic variant. For more information on the name, see Bahlow s.n. Lienhard.

Belgium
Dutch
1597x1598 Lenaert BoonenGes p. 327, Leonaerdt ibid. p. 389, Leonardus ibid. p. 387
Czech Republic
Latin
1350 Leonardus (nom) chlumecky 157; 1353 Leonardus (nom) ibid. 37, p. 22
England
Latin
1553 Leonardus (nom) StMartF p. 57; 1557 Leonardus (nom) ibid. p. 59; 1560 Leonardus (nom) ibid. p. 60
Dutch
1574 Leenart AuFr Boom; 1595 Leenaert ibid. Costerman; 1598 Leonard ibid. Costerman
Early Modern English
1530 Lennard LIWill-III p. 28, Leonard WillsInv LXXX; 1531 Leonard SRS-XXI p. 8; 1533 leonarde WillsInv LXXXII; 1538 Leonard StAnthonlin p. 1; 1544 Leonard HAmar-vol9 p. 2; 1545 Leonard StAnthonlin p. 5; 1546 Leonard ibid. p. 5; 1547 Leonard DEmar-vol1 p. 79, StAnthonlin p. 6; 1549 Leonard BEmar-vol1 p. 3; 1556 Leonard PRThirsk p. 1, Leonarde ibid. p. 1; 1556/57 Leonarde ibid. p. 2; 1556 Leonarde bruton-vol1 p. 2; 1557 Leanard PRThirsk p. 2, Leonard ibid. p. 2; 1561 Leonard WAmar-1 p. 108; 1562 Leonard bruton-vol1 p. 111, Leonarde WAmar-1 p. 108; 1564 Leonard bruton-vol1 p. 34; 1567 Leonard ibid. p. 112; 1570 Leonard ibid. p. 6; 1575 Leonard ibid. p. 7; 1581 Leanaerd HAmar-vol9 p. 68; 1582 Leonard COmar-vol2 p. 49, DEmar-vol1 p. 85; 1583 Leonard bruton-vol1 p. 45; 1584 Leonard BEmar-vol1 p. 11; 1585 Leonard Bar-in-El p. 15; 1586 Leonard ibid. p. 16, COmar-vol2 p. 102; 1587 Leonard ibid. p. 102, DEmar-vol2 p. 13; 1588 Leonard ibid. p. 15; 1590 Leonard Bar-in-El p. 29; 1593/4 Leonard BEmar-vol1 p. 16; 1593 Leonard bruton-vol1 p. 53; 1597/8 Leanarde HAmar-vol9 p. 93; 1597 Leanord CAmar-vol1 p. 6
Middle French
1364 Lyenart SocAntNor-3-3 no. 38
France
Latin
1260 Leonardo (abl) ArrestReg-volI XVII, Ascension, Leonardum (acc) ibid. XVII, Ascension, Leonardus (nom) ibid. XVII, Ascension; 1301 Leonardi (gen) MemPic-vol17 p. 219, Leonardus (nom) ibid. p. 178; 1378 Leonardo (dat) hanquetvol1 1505; 1579 Leonardi (gen) FlorLyon p. 40; 1585 Leonardus (nom) ibid. p. 40
Old French
1313 Lienart Paris1313 p. 21
Middle French
1392 Lyenart MemBret-II col. 613; 1563 Léonard RegPCC-1 p. 23; 1564 Léonard ibid. p. 88; 1565 Léonard ibid. p. 128; 1566 Léonard ibid. p. 254; 1567 Léonard ibid. p. 288; 1571 Liénard ibid. p. 442; 1590 Léonart raymond1588 p. 572
Germany
Latin
1414 Leonhardum (acc) mairhofer DCXCVIII, Leonhardus (nom) ibid. DCXCVII; 1422 Leonardus (nom) ibid. DCCXVIII
Early New High German
1404 Linhard (nom) mairhofer DCLXXVII; 1419 Lienhardt (gen) ibid. DCCXII, Lienhart (gen) ibid. DCCXIII; 1423 Lienhart (nom) ibid. DCCXIX; 1497 Lienhart Nurn1497 p. 2, Liennhart ibid. p. 1, Linhar ibid. 1455, Linhardt ibid. 2673, Linhart ibid. 28
Ireland
Latin
1496 Leonardo (abl) RegOct 39, Leonardum (acc) ibid. 39, Leonardus (nom) ibid. 39
Early Modern English
1538/9 Leonard Fiants-1 71; 1540 Leonard ibid. 150
Italy
Latin
1237 Lienhardi (gen) TirNot1 582; 1300 Leonardum (acc) ActDipVeneto-I-1 p. 49; 1324 Leonardus (nom) DSF p. 48, 3731; 1366 Leonardus (nom) CatTir1 12; 1376 Leonardi (gen) DouGen1 p. 243, Leonardo (abl) ibid. p. 41; 1387 Leonardi (gen) Venditti II-37, Leonardum (acc) ibid. II-510; 1393 Leonardo (abl) sajanello-2; 1423 Leonardi (gen) CatTir1 69; 1464 Leonardus (nom) CUP-III-I CCXXXI; 1470 Leonardj (gen) RCCaetani6 730, Leonardo (abl) ibid. XXI-62, Leonardus (nom) ibid. XXI-62; 1478 Leonardi (gen) ibid. 2720, Leonardo (abl) ibid. 2720; 1527 Leonardi (gen) Rome1527 p. 84, Leonardus (nom) ibid. p. 85
1173 Leonardelli (gen) SDE3 V, Leonardello (abl) ibid. V; 1348 Leonardelli (gen) INP 21; 1366 Nardus (nom) Livi 5; 1425 Nardi (gen) CatTir1 86; 1470 Nardi (gen) RCCaetani6 730; 1478 Nardelli (gen) ibid. 2720, Narducium (acc) ibid. 2720
Italian
1429–1430 Lionardo DiaryLMA p. 207; 1513x1521 Leonardo LeoX p. 12
1513x1521 Nardo LeoX p. 16
Spain
Latin
1488 Leonardi (gen) carbonell-I p. 16; 1490 Leonardi (gen) ibid. p. 42
Catalan
1510 Leonard valencia1510 3216, Leonart ibid. 2096
Cite as: J. Uckelman, S.L. Uckelman. "Leonard". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Leonard.